typo fix in note 18

DS-100 · Apr 3, 2024 · 912627d · 912627d
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diff --git a/docs/gradient_descent/gradient_descent.html b/docs/gradient_descent/gradient_descent.html
diff --git a/docs/intro_to_modeling/intro_to_modeling_files/figure-html/cell-2-output-1.png b/docs/intro_to_modeling/intro_to_modeling_files/figure-html/cell-2-output-1.png
diff --git a/docs/pandas_2/pandas_2.html b/docs/pandas_2/pandas_2.html
@@ -1650,12 +1650,12 @@ <h3 data-number="3.3.4" class="anchored" data-anchor-id="sample"><span class="he
 </thead>
 <tbody>
 <tr class="odd">
-<td data-quarto-table-cell-role="th">23555</td>
+<td data-quarto-table-cell-role="th">366772</td>
 <td>CA</td>
-<td>F</td>
-<td>1946</td>
-<td>Richard</td>
-<td>7</td>
+<td>M</td>
+<td>2008</td>
+<td>Neeraj</td>
+<td>5</td>
 </tr>
 </tbody>
 </table>
@@ -1682,34 +1682,34 @@ <h3 data-number="3.3.4" class="anchored" data-anchor-id="sample"><span class="he
 </thead>
 <tbody>
 <tr class="odd">
-<td data-quarto-table-cell-role="th">159317</td>
-<td>2002</td>
-<td>Devina</td>
-<td>7</td>
+<td data-quarto-table-cell-role="th">167084</td>
+<td>2004</td>
+<td>Vicki</td>
+<td>8</td>
 </tr>
 <tr class="even">
-<td data-quarto-table-cell-role="th">291371</td>
-<td>1975</td>
-<td>Sunny</td>
-<td>5</td>
+<td data-quarto-table-cell-role="th">210217</td>
+<td>2015</td>
+<td>Mabel</td>
+<td>63</td>
 </tr>
 <tr class="odd">
-<td data-quarto-table-cell-role="th">243650</td>
-<td>1921</td>
-<td>Verne</td>
-<td>9</td>
+<td data-quarto-table-cell-role="th">262294</td>
+<td>1950</td>
+<td>Quentin</td>
+<td>5</td>
 </tr>
 <tr class="even">
-<td data-quarto-table-cell-role="th">385678</td>
-<td>2015</td>
-<td>Noam</td>
-<td>15</td>
+<td data-quarto-table-cell-role="th">198220</td>
+<td>2012</td>
+<td>Vienna</td>
+<td>55</td>
 </tr>
 <tr class="odd">
-<td data-quarto-table-cell-role="th">211153</td>
-<td>2015</td>
-<td>Alysson</td>
-<td>17</td>
+<td data-quarto-table-cell-role="th">79888</td>
+<td>1978</td>
+<td>Letisha</td>
+<td>8</td>
 </tr>
 </tbody>
 </table>
@@ -1735,28 +1735,28 @@ <h3 data-number="3.3.4" class="anchored" data-anchor-id="sample"><span class="he
 </thead>
 <tbody>
 <tr class="odd">
-<td data-quarto-table-cell-role="th">343844</td>
+<td data-quarto-table-cell-role="th">151306</td>
 <td>2000</td>
-<td>Malek</td>
-<td>10</td>
+<td>Janina</td>
+<td>9</td>
 </tr>
 <tr class="even">
-<td data-quarto-table-cell-role="th">149481</td>
+<td data-quarto-table-cell-role="th">150540</td>
 <td>2000</td>
-<td>Tessa</td>
-<td>94</td>
+<td>Abrianna</td>
+<td>16</td>
 </tr>
 <tr class="odd">
-<td data-quarto-table-cell-role="th">151926</td>
+<td data-quarto-table-cell-role="th">152423</td>
 <td>2000</td>
-<td>Alesha</td>
-<td>6</td>
+<td>Deven</td>
+<td>5</td>
 </tr>
 <tr class="even">
-<td data-quarto-table-cell-role="th">152494</td>
+<td data-quarto-table-cell-role="th">344406</td>
 <td>2000</td>
-<td>Jaeden</td>
-<td>5</td>
+<td>Chadwick</td>
+<td>6</td>
 </tr>
 </tbody>
 </table>

diff --git a/docs/pandas_3/pandas_3.html b/docs/pandas_3/pandas_3.html
diff --git a/docs/probability_2/probability_2.html b/docs/probability_2/probability_2.html
@@ -551,7 +551,7 @@ <h3 data-number="18.3.1" class="anchored" data-anchor-id="prediction-as-estimati
 <p align="center">
 <img src="images/y_hat.png" alt="y_hat" width="600">
 </p>
-<p>When building models it is also important to note that our choice of features will also signficantly impact our estimation. In the plot below, you can see how the different models (green and purple) can lead to different estimates.</p>
+<p>When building models, it is also important to note that our choice of features will also significantly impact our estimation. In the plot below, you can see how the different models (green and purple) can lead to different estimates.</p>
 <p align="center">
 <img src="images/y_hat2.png" alt="y_hat" width="400">
 </p>
@@ -1332,7 +1332,7 @@ <h3 data-number="18.5.5" class="anchored" data-anchor-id="step-4-bias-variance-d
 <span id="cb1-206"><a href="#cb1-206" aria-hidden="true" tabindex="-1"></a><span class="kw">&lt;img</span> <span class="er">src</span><span class="ot">=</span><span class="st">"images/y_hat.png"</span> <span class="er">alt</span><span class="ot">=</span><span class="st">'y_hat'</span> <span class="er">width</span><span class="ot">=</span><span class="st">'600'</span><span class="kw">&gt;</span></span>
 <span id="cb1-207"><a href="#cb1-207" aria-hidden="true" tabindex="-1"></a><span class="kw">&lt;/p&gt;</span></span>
 <span id="cb1-208"><a href="#cb1-208" aria-hidden="true" tabindex="-1"></a></span>
-<span id="cb1-209"><a href="#cb1-209" aria-hidden="true" tabindex="-1"></a>When building models it is also important to note that our choice of features will also signficantly impact our estimation. In the plot below, you can see how the different models (green and purple) can lead to different estimates.</span>
+<span id="cb1-209"><a href="#cb1-209" aria-hidden="true" tabindex="-1"></a>When building models, it is also important to note that our choice of features will also significantly impact our estimation. In the plot below, you can see how the different models (green and purple) can lead to different estimates.</span>
 <span id="cb1-210"><a href="#cb1-210" aria-hidden="true" tabindex="-1"></a></span>
 <span id="cb1-211"><a href="#cb1-211" aria-hidden="true" tabindex="-1"></a><span class="kw">&lt;p</span> <span class="er">align</span><span class="ot">=</span><span class="st">"center"</span><span class="kw">&gt;</span></span>
 <span id="cb1-212"><a href="#cb1-212" aria-hidden="true" tabindex="-1"></a><span class="kw">&lt;img</span> <span class="er">src</span><span class="ot">=</span><span class="st">"images/y_hat2.png"</span> <span class="er">alt</span><span class="ot">=</span><span class="st">'y_hat'</span> <span class="er">width</span><span class="ot">=</span><span class="st">'400'</span><span class="kw">&gt;</span></span>

diff --git a/docs/regex/regex.html b/docs/regex/regex.html
@@ -686,11 +686,11 @@ <h4 data-number="6.2.1.2" class="anchored" data-anchor-id="canonicalization-with
 <span id="cb6-13"><a href="#cb6-13" aria-hidden="true" tabindex="-1"></a>county_and_state[<span class="st">'clean_county_pandas'</span>] <span class="op">=</span> canonicalize_county_series(county_and_state[<span class="st">'County'</span>])</span>
 <span id="cb6-14"><a href="#cb6-14" aria-hidden="true" tabindex="-1"></a>display(county_and_pop), display(county_and_state)<span class="op">;</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 <div class="cell-output cell-output-stderr">
-<pre><code>/var/folders/7t/zbwy02ts2m7cn64fvwjqb8xw0000gp/T/ipykernel_45980/2523629438.py:3: FutureWarning:
+<pre><code>/var/folders/7t/zbwy02ts2m7cn64fvwjqb8xw0000gp/T/ipykernel_49929/2523629438.py:3: FutureWarning:
 
 The default value of regex will change from True to False in a future version. In addition, single character regular expressions will *not* be treated as literal strings when regex=True.
 
-/var/folders/7t/zbwy02ts2m7cn64fvwjqb8xw0000gp/T/ipykernel_45980/2523629438.py:3: FutureWarning:
+/var/folders/7t/zbwy02ts2m7cn64fvwjqb8xw0000gp/T/ipykernel_49929/2523629438.py:3: FutureWarning:
 
 The default value of regex will change from True to False in a future version. In addition, single character regular expressions will *not* be treated as literal strings when regex=True.
 </code></pre>

diff --git a/docs/sampling/sampling.html b/docs/sampling/sampling.html
@@ -704,7 +704,7 @@ <h4 data-number="9.3.3.3" class="anchored" data-anchor-id="simple-random-sample"
 <span id="cb13-2"><a href="#cb13-2" aria-hidden="true" tabindex="-1"></a>random_sample <span class="op">=</span> movie.sample(n, replace <span class="op">=</span> <span class="va">False</span>) <span class="co">## By default, replace = False</span></span>
 <span id="cb13-3"><a href="#cb13-3" aria-hidden="true" tabindex="-1"></a>np.mean(random_sample[<span class="st">"barbie"</span>])</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 <div class="cell-output cell-output-display" data-execution_count="9">
-<pre><code>0.5304121359169273</code></pre>
+<pre><code>0.5296914823759864</code></pre>
 </div>
 </div>
 <p>This is very close to the actual vote of 0.5302792307692308!</p>
@@ -722,7 +722,7 @@ <h4 data-number="9.3.3.3" class="anchored" data-anchor-id="simple-random-sample"
 <span id="cb15-10"><a href="#cb15-10" aria-hidden="true" tabindex="-1"></a>Markdown(<span class="ss">f"**Actual** = </span><span class="sc">{</span>actual_barbie<span class="sc">:.4f}</span><span class="ss">, **Sample** = </span><span class="sc">{</span>sample_barbie<span class="sc">:.4f}</span><span class="ss">, "</span></span>
 <span id="cb15-11"><a href="#cb15-11" aria-hidden="true" tabindex="-1"></a>         <span class="ss">f"**Err** = </span><span class="sc">{</span><span class="dv">100</span><span class="op">*</span>err<span class="sc">:.2f}</span><span class="ss">%."</span>)</span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 <div class="cell-output cell-output-display" data-execution_count="10">
-<p><strong>Actual</strong> = 0.5303, <strong>Sample</strong> = 0.4975, <strong>Err</strong> = 6.18%.</p>
+<p><strong>Actual</strong> = 0.5303, <strong>Sample</strong> = 0.5337, <strong>Err</strong> = 0.65%.</p>
 </div>
 </div>
 <p>We’ll learn how to choose this number when we (re)learn the Central Limit Theorem later in the semester.</p>
@@ -755,7 +755,7 @@ <h4 data-number="9.3.3.4" class="anchored" data-anchor-id="quantifying-chance-er
 <div class="sourceCode cell-code" id="cb18"><pre class="sourceCode python code-with-copy"><code class="sourceCode python"><span id="cb18-1"><a href="#cb18-1" aria-hidden="true" tabindex="-1"></a>poll_result <span class="op">=</span> pd.Series(poll_result)</span>
 <span id="cb18-2"><a href="#cb18-2" aria-hidden="true" tabindex="-1"></a>np.<span class="bu">sum</span>(poll_result <span class="op">&gt;</span> <span class="fl">0.5</span>)<span class="op">/</span><span class="dv">1000</span></span></code><button title="Copy to Clipboard" class="code-copy-button"><i class="bi"></i></button></pre></div>
 <div class="cell-output cell-output-display" data-execution_count="13">
-<pre><code>0.964</code></pre>
+<pre><code>0.951</code></pre>
 </div>
 </div>
 <p>You can see the curve looks roughly Gaussian/normal. Using KDE:</p>

diff --git a/docs/sampling/sampling_files/figure-html/cell-13-output-1.png b/docs/sampling/sampling_files/figure-html/cell-13-output-1.png
diff --git a/docs/sampling/sampling_files/figure-html/cell-15-output-1.png b/docs/sampling/sampling_files/figure-html/cell-15-output-1.png
diff --git a/docs/sql_I/sql_I.html b/docs/sql_I/sql_I.html
@@ -723,10 +723,10 @@ <h4 data-number="20.4.1.3" class="anchored" data-anchor-id="uniqueness-with-dist
 <td>2011</td>
 </tr>
 <tr class="even">
-<td>2019</td>
+<td>2010</td>
 </tr>
 <tr class="odd">
-<td>2010</td>
+<td>2019</td>
 </tr>
 </tbody>
 </table>
@@ -1208,13 +1208,13 @@ <h2 data-number="20.5" class="anchored" data-anchor-id="aggregating-with-group-b
 <td>30</td>
 </tr>
 <tr class="even">
-<td>dessert</td>
-<td>5</td>
-</tr>
-<tr class="odd">
 <td>appetizer</td>
 <td>12</td>
 </tr>
+<tr class="odd">
+<td>dessert</td>
+<td>5</td>
+</tr>
 </tbody>
 </table>
 
@@ -1253,10 +1253,10 @@ <h2 data-number="20.5" class="anchored" data-anchor-id="aggregating-with-group-b
 </thead>
 <tbody>
 <tr class="odd">
-<td>dessert</td>
-<td>5</td>
-<td>5</td>
-<td>ice cream</td>
+<td>entree</td>
+<td>30</td>
+<td>7</td>
+<td>taco</td>
 </tr>
 <tr class="even">
 <td>appetizer</td>
@@ -1265,10 +1265,10 @@ <h2 data-number="20.5" class="anchored" data-anchor-id="aggregating-with-group-b
 <td>potsticker</td>
 </tr>
 <tr class="odd">
-<td>entree</td>
-<td>30</td>
-<td>7</td>
-<td>taco</td>
+<td>dessert</td>
+<td>5</td>
+<td>5</td>
+<td>ice cream</td>
 </tr>
 </tbody>
 </table>
@@ -1295,16 +1295,16 @@ <h2 data-number="20.5" class="anchored" data-anchor-id="aggregating-with-group-b
 </thead>
 <tbody>
 <tr class="odd">
-<td>2010</td>
+<td>2011</td>
 <td>2</td>
 </tr>
 <tr class="even">
-<td>2019</td>
-<td>1</td>
+<td>2010</td>
+<td>2</td>
 </tr>
 <tr class="odd">
-<td>2011</td>
-<td>2</td>
+<td>2019</td>
+<td>1</td>
 </tr>
 </tbody>
 </table>

diff --git a/docs/visualization_2/visualization_2_files/figure-html/cell-17-output-2.png b/docs/visualization_2/visualization_2_files/figure-html/cell-17-output-2.png
diff --git a/index.log b/index.log
@@ -1,4 +1,4 @@
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diff --git a/index.pdf b/index.pdf