diff --git a/lab2.ipynb b/lab2.ipynb
index 1ebdfeb..07a4d80 100644
--- a/lab2.ipynb
+++ b/lab2.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 228,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
@@ -275,7 +275,7 @@
        "5   Dimensity 700      1  "
       ]
      },
-     "execution_count": 228,
+     "execution_count": 1,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -294,7 +294,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 229,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [
     {
@@ -532,7 +532,7 @@
        "4                 1  "
       ]
      },
-     "execution_count": 229,
+     "execution_count": 2,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -549,7 +549,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 230,
+   "execution_count": 3,
    "metadata": {},
    "outputs": [
     {
@@ -797,7 +797,7 @@
        "[5 rows x 21 columns]"
       ]
      },
-     "execution_count": 230,
+     "execution_count": 3,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -812,63 +812,9 @@
     "house.head()"
    ]
   },
-  {
-   "attachments": {},
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "1. Продажа домов\n",
-    "\n",
-    "   Цель: Определение рыночной стоимости домов для оптимизации ценовой политики.\n",
-    "\n",
-    "   Эффект: Улучшение конкурентоспособности на рынке недвижимости и увеличение объема продаж за счет правильного ценообразования. Возможность точного прогнозирования цен и повышения удовлетворенности клиентов.\n",
-    "\n",
-    "2. Цены на автомобили\n",
-    "\n",
-    "   Цель: Оценка цен на автомобили в зависимости от различных факторов (например, пробег, марка, модель, год выпуска).\n",
-    "\n",
-    "   Эффект: Увеличение привлекательности предложения за счет адекватного ценообразования и минимизации убытков от продажи автомобилей. Позволяет более точно прогнозировать потребности клиентов и улучшить управление запасами.\n",
-    "\n",
-    "3. Цены на мобильные устройства\n",
-    "\n",
-    "   Цель: Определение причин изменения цен на мобильные устройства и оценка влияния сезонных скидок на спрос.\n",
-    "\n",
-    "   Эффект: Оптимизация маркетинговых стратегий и акций, что может привести к увеличению объемов продаж. Улучшение прогнозирования спроса и управление ассортиментом на основе ценовых изменений."
-   ]
-  },
-  {
-   "attachments": {},
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "1. Продажа домов\n",
-    "   \n",
-    "   Цель технического проекта: Разработка системы оценки рыночной стоимости недвижимости на основе анализа данных о продажах.\n",
-    "\n",
-    "   Вход: Набор данных о прошедших продажах домов (цена, площадь, местоположение, количество комнат, год постройки и т.д.).\n",
-    "\n",
-    "   Целевой признак: Рыночная цена продажи домов.\n",
-    "\n",
-    "2. Цены на автомобили\n",
-    "\n",
-    "   Цель технического проекта: Создание алгоритма, который предсказывает цены на автомобили с учетом различных характеристик и рыночных тенденций.\n",
-    "\n",
-    "   Вход: Данные о характеристиках автомобилей (марка, модель, год выпуска, пробег, состояние) и цены на аналогичные автомобили.\n",
-    "\n",
-    "   Целевой признак: Цена автомобиля.\n",
-    "\n",
-    "3. Цены на мобильные устройства\n",
-    "\n",
-    "   Цель технического проекта: Разработка системы, анализирующей влияние маркетинговых акций на цены и спрос на мобильные устройства.\n",
-    "\n",
-    "   Вход: Данные о ценах на мобильные устройства (с учетом скидок), история продаж, информация о маркетинговых акциях и сезонные колебания.\n",
-    "\n",
-    "   Целевой признак: Объем продаж мобильных устройств."
-   ]
-  },
   {
    "cell_type": "code",
-   "execution_count": 231,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
@@ -989,7 +935,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 232,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -1069,7 +1015,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 233,
+   "execution_count": 6,
    "metadata": {},
    "outputs": [
     {
@@ -1160,7 +1106,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 234,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
@@ -1421,7 +1367,7 @@
        "1369   Octa Core  Snapdragon 8 Gen2      2  "
       ]
      },
-     "execution_count": 234,
+     "execution_count": 7,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1447,7 +1393,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 235,
+   "execution_count": 8,
    "metadata": {},
    "outputs": [
     {
@@ -1514,8 +1460,8 @@
      "data": {
       "text/plain": [
        "Class\n",
-       "1    144\n",
-       "2    127\n",
+       "1    143\n",
+       "2    128\n",
        "Name: count, dtype: int64"
       ]
      },
@@ -1544,8 +1490,8 @@
      "data": {
       "text/plain": [
        "Class\n",
-       "1    143\n",
-       "2    128\n",
+       "1    144\n",
+       "2    127\n",
        "Name: count, dtype: int64"
       ]
      },
@@ -1579,7 +1525,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 236,
+   "execution_count": 9,
    "metadata": {},
    "outputs": [
     {
@@ -1672,32 +1618,32 @@
        "    <tr>\n",
        "      <th>0</th>\n",
        "      <td>1</td>\n",
-       "      <td>89</td>\n",
-       "      <td>4.600000</td>\n",
+       "      <td>90</td>\n",
+       "      <td>4.550000</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
-       "      <td>2</td>\n",
-       "      <td>95</td>\n",
-       "      <td>4.350000</td>\n",
+       "      <td>1</td>\n",
+       "      <td>80</td>\n",
+       "      <td>4.400000</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>2</th>\n",
-       "      <td>2</td>\n",
-       "      <td>84</td>\n",
-       "      <td>4.200000</td>\n",
+       "      <td>1</td>\n",
+       "      <td>80</td>\n",
+       "      <td>4.650000</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>3</th>\n",
        "      <td>1</td>\n",
-       "      <td>92</td>\n",
-       "      <td>4.100000</td>\n",
+       "      <td>75</td>\n",
+       "      <td>4.500000</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>4</th>\n",
        "      <td>2</td>\n",
-       "      <td>69</td>\n",
-       "      <td>4.150000</td>\n",
+       "      <td>92</td>\n",
+       "      <td>4.650000</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>...</th>\n",
@@ -1708,32 +1654,32 @@
        "    <tr>\n",
        "      <th>851</th>\n",
        "      <td>2</td>\n",
-       "      <td>53</td>\n",
-       "      <td>4.441967</td>\n",
+       "      <td>96</td>\n",
+       "      <td>4.061287</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>852</th>\n",
        "      <td>2</td>\n",
-       "      <td>56</td>\n",
-       "      <td>4.295098</td>\n",
+       "      <td>95</td>\n",
+       "      <td>4.191740</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>853</th>\n",
        "      <td>2</td>\n",
-       "      <td>60</td>\n",
-       "      <td>4.489467</td>\n",
+       "      <td>73</td>\n",
+       "      <td>4.612413</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>854</th>\n",
        "      <td>2</td>\n",
-       "      <td>60</td>\n",
-       "      <td>4.511445</td>\n",
+       "      <td>94</td>\n",
+       "      <td>4.193295</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>855</th>\n",
        "      <td>2</td>\n",
-       "      <td>72</td>\n",
-       "      <td>4.207826</td>\n",
+       "      <td>92</td>\n",
+       "      <td>4.650000</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
@@ -1742,22 +1688,22 @@
       ],
       "text/plain": [
        "     Class  Spec_score    Rating\n",
-       "0        1          89  4.600000\n",
-       "1        2          95  4.350000\n",
-       "2        2          84  4.200000\n",
-       "3        1          92  4.100000\n",
-       "4        2          69  4.150000\n",
+       "0        1          90  4.550000\n",
+       "1        1          80  4.400000\n",
+       "2        1          80  4.650000\n",
+       "3        1          75  4.500000\n",
+       "4        2          92  4.650000\n",
        "..     ...         ...       ...\n",
-       "851      2          53  4.441967\n",
-       "852      2          56  4.295098\n",
-       "853      2          60  4.489467\n",
-       "854      2          60  4.511445\n",
-       "855      2          72  4.207826\n",
+       "851      2          96  4.061287\n",
+       "852      2          95  4.191740\n",
+       "853      2          73  4.612413\n",
+       "854      2          94  4.193295\n",
+       "855      2          92  4.650000\n",
        "\n",
        "[856 rows x 3 columns]"
       ]
      },
-     "execution_count": 236,
+     "execution_count": 9,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1781,7 +1727,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 237,
+   "execution_count": 10,
    "metadata": {},
    "outputs": [
     {
@@ -1878,33 +1824,33 @@
        "  </thead>\n",
        "  <tbody>\n",
        "    <tr>\n",
-       "      <th>786</th>\n",
-       "      <td>80</td>\n",
-       "      <td>4.30</td>\n",
+       "      <th>468</th>\n",
+       "      <td>69</td>\n",
+       "      <td>4.45</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>670</th>\n",
-       "      <td>91</td>\n",
-       "      <td>4.35</td>\n",
+       "      <th>1093</th>\n",
+       "      <td>86</td>\n",
+       "      <td>4.45</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>96</th>\n",
-       "      <td>72</td>\n",
-       "      <td>4.10</td>\n",
+       "      <th>1102</th>\n",
+       "      <td>89</td>\n",
+       "      <td>4.00</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>1207</th>\n",
-       "      <td>79</td>\n",
-       "      <td>4.75</td>\n",
+       "      <th>422</th>\n",
+       "      <td>70</td>\n",
+       "      <td>4.15</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>1165</th>\n",
-       "      <td>80</td>\n",
-       "      <td>4.60</td>\n",
+       "      <th>1192</th>\n",
+       "      <td>81</td>\n",
+       "      <td>4.00</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -1914,33 +1860,33 @@
        "      <td>...</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>875</th>\n",
+       "      <th>298</th>\n",
+       "      <td>75</td>\n",
+       "      <td>4.70</td>\n",
+       "      <td>2</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>249</th>\n",
        "      <td>75</td>\n",
        "      <td>4.25</td>\n",
        "      <td>2</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>544</th>\n",
-       "      <td>87</td>\n",
-       "      <td>4.65</td>\n",
+       "      <th>1341</th>\n",
+       "      <td>66</td>\n",
+       "      <td>4.25</td>\n",
        "      <td>2</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>787</th>\n",
-       "      <td>84</td>\n",
+       "      <th>923</th>\n",
+       "      <td>88</td>\n",
        "      <td>4.15</td>\n",
        "      <td>2</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>893</th>\n",
-       "      <td>83</td>\n",
-       "      <td>4.00</td>\n",
-       "      <td>2</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>519</th>\n",
-       "      <td>81</td>\n",
-       "      <td>4.30</td>\n",
+       "      <th>301</th>\n",
+       "      <td>80</td>\n",
+       "      <td>4.50</td>\n",
        "      <td>2</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -1951,22 +1897,22 @@
       "text/plain": [
        "      Spec_score  Rating  Class\n",
        "Id                             \n",
-       "786           80    4.30      1\n",
-       "670           91    4.35      1\n",
-       "96            72    4.10      1\n",
-       "1207          79    4.75      1\n",
-       "1165          80    4.60      1\n",
+       "468           69    4.45      1\n",
+       "1093          86    4.45      1\n",
+       "1102          89    4.00      1\n",
+       "422           70    4.15      1\n",
+       "1192          81    4.00      1\n",
        "...          ...     ...    ...\n",
-       "875           75    4.25      2\n",
-       "544           87    4.65      2\n",
-       "787           84    4.15      2\n",
-       "893           83    4.00      2\n",
-       "519           81    4.30      2\n",
+       "298           75    4.70      2\n",
+       "249           75    4.25      2\n",
+       "1341          66    4.25      2\n",
+       "923           88    4.15      2\n",
+       "301           80    4.50      2\n",
        "\n",
        "[762 rows x 3 columns]"
       ]
      },
-     "execution_count": 237,
+     "execution_count": 10,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -1998,7 +1944,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 238,
+   "execution_count": 11,
    "metadata": {},
    "outputs": [
     {
@@ -2130,7 +2076,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 239,
+   "execution_count": 12,
    "metadata": {},
    "outputs": [
     {
@@ -2175,7 +2121,7 @@
     {
      "data": {
       "text/plain": [
-       "(16720, 3)"
+       "(16728, 3)"
       ]
      },
      "metadata": {},
@@ -2186,7 +2132,7 @@
       "text/plain": [
        "LeatherInterior1\n",
        "1    8369\n",
-       "0    8351\n",
+       "0    8359\n",
        "Name: count, dtype: int64"
       ]
      },
@@ -2223,32 +2169,32 @@
        "    <tr>\n",
        "      <th>0</th>\n",
        "      <td>0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>2003</td>\n",
+       "      <td>16</td>\n",
+       "      <td>2011</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
-       "      <td>0</td>\n",
-       "      <td>0</td>\n",
-       "      <td>2010</td>\n",
+       "      <td>1</td>\n",
+       "      <td>10</td>\n",
+       "      <td>2017</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>2</th>\n",
-       "      <td>0</td>\n",
-       "      <td>2</td>\n",
-       "      <td>1995</td>\n",
+       "      <td>1</td>\n",
+       "      <td>4</td>\n",
+       "      <td>2018</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>3</th>\n",
        "      <td>1</td>\n",
-       "      <td>4</td>\n",
-       "      <td>2010</td>\n",
+       "      <td>0</td>\n",
+       "      <td>2011</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>4</th>\n",
        "      <td>1</td>\n",
-       "      <td>4</td>\n",
-       "      <td>2015</td>\n",
+       "      <td>6</td>\n",
+       "      <td>2010</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>...</th>\n",
@@ -2257,58 +2203,58 @@
        "      <td>...</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>16715</th>\n",
+       "      <th>16723</th>\n",
        "      <td>0</td>\n",
        "      <td>12</td>\n",
-       "      <td>1999</td>\n",
+       "      <td>2004</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>16716</th>\n",
+       "      <th>16724</th>\n",
        "      <td>0</td>\n",
        "      <td>12</td>\n",
-       "      <td>2000</td>\n",
+       "      <td>2004</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>16717</th>\n",
-       "      <td>0</td>\n",
-       "      <td>11</td>\n",
-       "      <td>1998</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>16718</th>\n",
+       "      <th>16725</th>\n",
        "      <td>0</td>\n",
        "      <td>12</td>\n",
-       "      <td>2000</td>\n",
+       "      <td>2004</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>16719</th>\n",
+       "      <th>16726</th>\n",
        "      <td>0</td>\n",
-       "      <td>11</td>\n",
-       "      <td>1998</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2004</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>16727</th>\n",
+       "      <td>0</td>\n",
+       "      <td>12</td>\n",
+       "      <td>2003</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
-       "<p>16720 rows × 3 columns</p>\n",
+       "<p>16728 rows × 3 columns</p>\n",
        "</div>"
       ],
       "text/plain": [
        "       LeatherInterior1  Airbags  ProdYear\n",
-       "0                     0        2      2003\n",
-       "1                     0        0      2010\n",
-       "2                     0        2      1995\n",
-       "3                     1        4      2010\n",
-       "4                     1        4      2015\n",
+       "0                     0       16      2011\n",
+       "1                     1       10      2017\n",
+       "2                     1        4      2018\n",
+       "3                     1        0      2011\n",
+       "4                     1        6      2010\n",
        "...                 ...      ...       ...\n",
-       "16715                 0       12      1999\n",
-       "16716                 0       12      2000\n",
-       "16717                 0       11      1998\n",
-       "16718                 0       12      2000\n",
-       "16719                 0       11      1998\n",
+       "16723                 0       12      2004\n",
+       "16724                 0       12      2004\n",
+       "16725                 0       12      2004\n",
+       "16726                 0       12      2004\n",
+       "16727                 0       12      2003\n",
        "\n",
-       "[16720 rows x 3 columns]"
+       "[16728 rows x 3 columns]"
       ]
      },
-     "execution_count": 239,
+     "execution_count": 12,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2332,7 +2278,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 240,
+   "execution_count": 13,
    "metadata": {},
    "outputs": [
     {
@@ -2423,69 +2369,69 @@
        "  </thead>\n",
        "  <tbody>\n",
        "    <tr>\n",
-       "      <th>1271</th>\n",
-       "      <td>2</td>\n",
-       "      <td>2003</td>\n",
+       "      <th>1315</th>\n",
+       "      <td>16</td>\n",
+       "      <td>2011</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>9524</th>\n",
+       "      <th>1569</th>\n",
        "      <td>0</td>\n",
-       "      <td>2010</td>\n",
-       "      <td>0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>9985</th>\n",
-       "      <td>2</td>\n",
-       "      <td>1995</td>\n",
-       "      <td>0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>12285</th>\n",
-       "      <td>8</td>\n",
-       "      <td>2012</td>\n",
-       "      <td>0</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>14259</th>\n",
-       "      <td>12</td>\n",
        "      <td>2014</td>\n",
        "      <td>0</td>\n",
        "    </tr>\n",
        "    <tr>\n",
+       "      <th>6317</th>\n",
+       "      <td>6</td>\n",
+       "      <td>2006</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>626</th>\n",
+       "      <td>4</td>\n",
+       "      <td>2000</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>12439</th>\n",
+       "      <td>12</td>\n",
+       "      <td>2012</td>\n",
+       "      <td>0</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
        "      <th>...</th>\n",
        "      <td>...</td>\n",
        "      <td>...</td>\n",
        "      <td>...</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>1243</th>\n",
-       "      <td>6</td>\n",
-       "      <td>2006</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>10022</th>\n",
-       "      <td>10</td>\n",
-       "      <td>2010</td>\n",
-       "      <td>1</td>\n",
-       "    </tr>\n",
-       "    <tr>\n",
-       "      <th>18753</th>\n",
+       "      <th>3361</th>\n",
        "      <td>12</td>\n",
-       "      <td>2018</td>\n",
+       "      <td>2012</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>14272</th>\n",
+       "      <th>3286</th>\n",
        "      <td>4</td>\n",
-       "      <td>2013</td>\n",
+       "      <td>2017</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>16792</th>\n",
+       "      <th>17666</th>\n",
        "      <td>4</td>\n",
-       "      <td>2010</td>\n",
+       "      <td>2015</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4902</th>\n",
+       "      <td>0</td>\n",
+       "      <td>2012</td>\n",
+       "      <td>1</td>\n",
+       "    </tr>\n",
+       "    <tr>\n",
+       "      <th>4613</th>\n",
+       "      <td>4</td>\n",
+       "      <td>2014</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -2495,22 +2441,22 @@
       ],
       "text/plain": [
        "       Airbags  ProdYear  LeatherInterior1\n",
-       "1271         2      2003                 0\n",
-       "9524         0      2010                 0\n",
-       "9985         2      1995                 0\n",
-       "12285        8      2012                 0\n",
-       "14259       12      2014                 0\n",
+       "1315        16      2011                 0\n",
+       "1569         0      2014                 0\n",
+       "6317         6      2006                 0\n",
+       "626          4      2000                 0\n",
+       "12439       12      2012                 0\n",
        "...        ...       ...               ...\n",
-       "1243         6      2006                 1\n",
-       "10022       10      2010                 1\n",
-       "18753       12      2018                 1\n",
-       "14272        4      2013                 1\n",
-       "16792        4      2010                 1\n",
+       "3361        12      2012                 1\n",
+       "3286         4      2017                 1\n",
+       "17666        4      2015                 1\n",
+       "4902         0      2012                 1\n",
+       "4613         4      2014                 1\n",
        "\n",
        "[6334 rows x 3 columns]"
       ]
      },
-     "execution_count": 240,
+     "execution_count": 13,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2542,7 +2488,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 241,
+   "execution_count": 14,
    "metadata": {},
    "outputs": [
     {
@@ -2617,8 +2563,8 @@
      "data": {
       "text/plain": [
        "bedrooms\n",
-       "3    303\n",
-       "4    212\n",
+       "3    304\n",
+       "4    211\n",
        "2     81\n",
        "5     47\n",
        "6     11\n",
@@ -2651,8 +2597,8 @@
      "data": {
       "text/plain": [
        "bedrooms\n",
-       "3    304\n",
-       "4    211\n",
+       "3    303\n",
+       "4    212\n",
        "2     81\n",
        "5     47\n",
        "6     11\n",
@@ -2690,7 +2636,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 242,
+   "execution_count": 15,
    "metadata": {},
    "outputs": [
     {
@@ -2739,7 +2685,7 @@
     {
      "data": {
       "text/plain": [
-       "(5332, 3)"
+       "(5380, 3)"
       ]
      },
      "metadata": {},
@@ -2749,11 +2695,11 @@
      "data": {
       "text/plain": [
        "bedrooms\n",
+       "2    932\n",
+       "1    914\n",
        "3    911\n",
        "6    907\n",
-       "1    907\n",
-       "5    892\n",
-       "2    887\n",
+       "5    888\n",
        "4    828\n",
        "Name: count, dtype: int64"
       ]
@@ -2790,33 +2736,33 @@
        "  <tbody>\n",
        "    <tr>\n",
        "      <th>0</th>\n",
-       "      <td>2</td>\n",
-       "      <td>620</td>\n",
-       "      <td>4760</td>\n",
+       "      <td>3</td>\n",
+       "      <td>1940</td>\n",
+       "      <td>10035</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>1</th>\n",
-       "      <td>2</td>\n",
-       "      <td>1760</td>\n",
-       "      <td>2275</td>\n",
+       "      <td>4</td>\n",
+       "      <td>1920</td>\n",
+       "      <td>4862</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>2</th>\n",
-       "      <td>6</td>\n",
-       "      <td>3840</td>\n",
-       "      <td>14040</td>\n",
+       "      <td>4</td>\n",
+       "      <td>2340</td>\n",
+       "      <td>3784</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>3</th>\n",
        "      <td>4</td>\n",
-       "      <td>2230</td>\n",
-       "      <td>6791</td>\n",
+       "      <td>3450</td>\n",
+       "      <td>33460</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>4</th>\n",
        "      <td>4</td>\n",
-       "      <td>1850</td>\n",
-       "      <td>5040</td>\n",
+       "      <td>2230</td>\n",
+       "      <td>26989</td>\n",
        "    </tr>\n",
        "    <tr>\n",
        "      <th>...</th>\n",
@@ -2825,58 +2771,58 @@
        "      <td>...</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>5327</th>\n",
+       "      <th>5375</th>\n",
        "      <td>6</td>\n",
-       "      <td>3272</td>\n",
-       "      <td>5227</td>\n",
+       "      <td>2575</td>\n",
+       "      <td>6858</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>5328</th>\n",
+       "      <th>5376</th>\n",
        "      <td>6</td>\n",
-       "      <td>3007</td>\n",
-       "      <td>4422</td>\n",
+       "      <td>2635</td>\n",
+       "      <td>8286</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>5329</th>\n",
+       "      <th>5377</th>\n",
        "      <td>6</td>\n",
-       "      <td>3147</td>\n",
-       "      <td>4818</td>\n",
+       "      <td>2815</td>\n",
+       "      <td>7930</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>5330</th>\n",
+       "      <th>5378</th>\n",
        "      <td>6</td>\n",
-       "      <td>3021</td>\n",
-       "      <td>4954</td>\n",
+       "      <td>2857</td>\n",
+       "      <td>7735</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>5331</th>\n",
+       "      <th>5379</th>\n",
        "      <td>6</td>\n",
-       "      <td>3010</td>\n",
-       "      <td>5088</td>\n",
+       "      <td>2923</td>\n",
+       "      <td>7315</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
        "</table>\n",
-       "<p>5332 rows × 3 columns</p>\n",
+       "<p>5380 rows × 3 columns</p>\n",
        "</div>"
       ],
       "text/plain": [
        "      bedrooms  sqft_living  sqft_lot\n",
-       "0            2          620      4760\n",
-       "1            2         1760      2275\n",
-       "2            6         3840     14040\n",
-       "3            4         2230      6791\n",
-       "4            4         1850      5040\n",
+       "0            3         1940     10035\n",
+       "1            4         1920      4862\n",
+       "2            4         2340      3784\n",
+       "3            4         3450     33460\n",
+       "4            4         2230     26989\n",
        "...        ...          ...       ...\n",
-       "5327         6         3272      5227\n",
-       "5328         6         3007      4422\n",
-       "5329         6         3147      4818\n",
-       "5330         6         3021      4954\n",
-       "5331         6         3010      5088\n",
+       "5375         6         2575      6858\n",
+       "5376         6         2635      8286\n",
+       "5377         6         2815      7930\n",
+       "5378         6         2857      7735\n",
+       "5379         6         2923      7315\n",
        "\n",
-       "[5332 rows x 3 columns]"
+       "[5380 rows x 3 columns]"
       ]
      },
-     "execution_count": 242,
+     "execution_count": 15,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -2900,7 +2846,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 243,
+   "execution_count": 16,
    "metadata": {},
    "outputs": [
     {
@@ -2999,33 +2945,33 @@
        "  </thead>\n",
        "  <tbody>\n",
        "    <tr>\n",
-       "      <th>1729</th>\n",
-       "      <td>680</td>\n",
-       "      <td>1638</td>\n",
+       "      <th>2003</th>\n",
+       "      <td>1090</td>\n",
+       "      <td>8750</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>1453</th>\n",
-       "      <td>660</td>\n",
-       "      <td>2600</td>\n",
+       "      <th>2922</th>\n",
+       "      <td>780</td>\n",
+       "      <td>10235</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>1649</th>\n",
-       "      <td>3000</td>\n",
-       "      <td>204732</td>\n",
+       "      <th>350</th>\n",
+       "      <td>560</td>\n",
+       "      <td>12120</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>2151</th>\n",
-       "      <td>1010</td>\n",
-       "      <td>5750</td>\n",
+       "      <th>2682</th>\n",
+       "      <td>710</td>\n",
+       "      <td>6000</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>154</th>\n",
-       "      <td>700</td>\n",
-       "      <td>5100</td>\n",
+       "      <th>3037</th>\n",
+       "      <td>890</td>\n",
+       "      <td>211576</td>\n",
        "      <td>1</td>\n",
        "    </tr>\n",
        "    <tr>\n",
@@ -3035,33 +2981,33 @@
        "      <td>...</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>2069</th>\n",
-       "      <td>2410</td>\n",
-       "      <td>6000</td>\n",
+       "      <th>832</th>\n",
+       "      <td>2450</td>\n",
+       "      <td>25600</td>\n",
        "      <td>6</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>1192</th>\n",
-       "      <td>2560</td>\n",
-       "      <td>8320</td>\n",
+       "      <th>783</th>\n",
+       "      <td>3610</td>\n",
+       "      <td>10003</td>\n",
        "      <td>6</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>2065</th>\n",
-       "      <td>3240</td>\n",
-       "      <td>5750</td>\n",
+       "      <th>486</th>\n",
+       "      <td>4860</td>\n",
+       "      <td>11793</td>\n",
        "      <td>6</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>2492</th>\n",
-       "      <td>2400</td>\n",
-       "      <td>9373</td>\n",
+       "      <th>1499</th>\n",
+       "      <td>3840</td>\n",
+       "      <td>14040</td>\n",
        "      <td>6</td>\n",
        "    </tr>\n",
        "    <tr>\n",
-       "      <th>232</th>\n",
-       "      <td>2940</td>\n",
-       "      <td>7350</td>\n",
+       "      <th>1302</th>\n",
+       "      <td>3010</td>\n",
+       "      <td>17864</td>\n",
        "      <td>6</td>\n",
        "    </tr>\n",
        "  </tbody>\n",
@@ -3071,22 +3017,22 @@
       ],
       "text/plain": [
        "      sqft_living  sqft_lot  bedrooms\n",
-       "1729          680      1638         1\n",
-       "1453          660      2600         1\n",
-       "1649         3000    204732         1\n",
-       "2151         1010      5750         1\n",
-       "154           700      5100         1\n",
+       "2003         1090      8750         1\n",
+       "2922          780     10235         1\n",
+       "350           560     12120         1\n",
+       "2682          710      6000         1\n",
+       "3037          890    211576         1\n",
        "...           ...       ...       ...\n",
-       "2069         2410      6000         6\n",
-       "1192         2560      8320         6\n",
-       "2065         3240      5750         6\n",
-       "2492         2400      9373         6\n",
-       "232          2940      7350         6\n",
+       "832          2450     25600         6\n",
+       "783          3610     10003         6\n",
+       "486          4860     11793         6\n",
+       "1499         3840     14040         6\n",
+       "1302         3010     17864         6\n",
        "\n",
        "[108 rows x 3 columns]"
       ]
      },
-     "execution_count": 243,
+     "execution_count": 16,
      "metadata": {},
      "output_type": "execute_result"
     }
diff --git a/lab3.ipynb b/lab3.ipynb
index d65386a..a43b00a 100644
--- a/lab3.ipynb
+++ b/lab3.ipynb
@@ -7,40 +7,8 @@
    "source": [
     "Бизнес-цели для набора данных онлайн обучения\n",
     "\n",
-    "1. Увеличение удержания пользователей\n",
-    "\n",
-    "    Цель: Повысить процент пользователей, которые продолжают обучение на платформе после регистрации. Для достижения этой цели необходимо анализировать поведение пользователей, выявлять факторы, способствующие оттоку, и разрабатывать меры по улучшению пользовательского опыта, такие как персонализированные рекомендации курсов и активная поддержка через наставников.\n",
-    "\n",
-    "2. Оптимизация контента курсов\n",
-    "\n",
-    "   Цель: Улучшить качество и релевантность курсов, предлагаемых на платформе, на основе анализа повышенных результатов и отзывов пользователей. Это включает в себя регулярный анализ эффективности курсов, выявление тем, которые вызывают наибольший интерес, и использование данных для создания новых курсов или обновления существующих."
-   ]
-  },
-  {
-   "attachments": {},
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "Цели технического проекта для бизнес-целей\n",
-    "\n",
-    "1. Цели технического проекта для увеличения удержания пользователей\n",
-    "\n",
-    "   - Разработка системы аналитики поведения пользователей  \n",
-    "    Создать инструмент, который будет отслеживать действия пользователей на платформе, включая время, проведенное на курсах, и этапы завершения.\n",
-    "\n",
-    "   - Создание программы менторства  \n",
-    "     Реализовать функционал, который позволит участникам связываться с наставниками для получения индивидуальной поддержки и консультаций.\n",
-    "\n",
-    "2. Цели технического проекта для оптимизации контента курсов\n",
-    "\n",
-    "   - Анализ эффективности курсов  \n",
-    "     Разработать систему сбора и анализа отзывов от пользователей по каждому курсу, включая оценку контента, преподавателей и общей полезности.\n",
-    "\n",
-    "   - Инструмент для мониторинга трендов  \n",
-    "     Создать систему, которая будет отслеживать актуальность тем курсов на основе запросов пользователей и популярных направлений в области образования.\n",
-    "\n",
-    "   - Интеграция функциональности для обновления контента  \n",
-    "     Разработать систему, которая позволит преподавателям легко обновлять материалы курсов на основе полученной обратной связи и анализа данных."
+    "1. определение уровня образования\n",
+    "2. определение It-направления\n"
    ]
   },
   {