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diff --git a/01-IntroductionToPython.html b/01-IntroductionToPython.html
@@ -660,7 +660,7 @@ <h2>Functions<a class="headerlink" href="#functions" title="Permalink to this he
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>-0.16732079539678754
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>array([ 93.87826084, 107.02436875,  87.70148102, 107.76083003,
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+<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>array([122.35642131,  81.23506534,  82.55897256, 127.60903764,
+        69.18065528])
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diff --git a/03-DataVisualization.html b/03-DataVisualization.html
@@ -318,7 +318,7 @@ <h3>Bar vs. line plots<a class="headerlink" href="#bar-vs-line-plots" title="Per
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>[&lt;matplotlib.lines.Line2D at 0x7f288ee47190&gt;]
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 <img alt="_images/03-DataVisualization_14_1.png" src="_images/03-DataVisualization_14_1.png" />
@@ -333,7 +333,7 @@ <h3>Bar vs. line plots<a class="headerlink" href="#bar-vs-line-plots" title="Per
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 <img alt="_images/03-DataVisualization_16_1.png" src="_images/03-DataVisualization_16_1.png" />
@@ -376,7 +376,7 @@ <h2>Plots with two variables<a class="headerlink" href="#plots-with-two-variable
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>&lt;matplotlib.axes._subplots.AxesSubplot at 0x7f288ec89580&gt;
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 <img alt="_images/03-DataVisualization_23_1.png" src="_images/03-DataVisualization_23_1.png" />
@@ -396,7 +396,7 @@ <h2>Plotting dispersion<a class="headerlink" href="#plotting-dispersion" title="
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 <img alt="_images/03-DataVisualization_26_1.png" src="_images/03-DataVisualization_26_1.png" />
@@ -412,7 +412,7 @@ <h2>Plotting dispersion<a class="headerlink" href="#plotting-dispersion" title="
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>&lt;matplotlib.axes._subplots.AxesSubplot at 0x7f288c441c40&gt;
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diff --git a/04-FittingSimpleModels.html b/04-FittingSimpleModels.html
@@ -358,8 +358,8 @@ <h2>Mode<a class="headerlink" href="#mode" title="Permalink to this headline">¶
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 <div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>a    2
-b    1
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+b    1
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@@ -485,7 +485,7 @@ <h2>Variability<a class="headerlink" href="#variability" title="Permalink to thi
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>118.0052013422819
+<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>92.39526800894856
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@@ -498,7 +498,7 @@ <h2>Variability<a class="headerlink" href="#variability" title="Permalink to thi
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@@ -512,7 +512,7 @@ <h2>Variability<a class="headerlink" href="#variability" title="Permalink to thi
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>10.863019899746197
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>10.8630198997462
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@@ -559,10 +559,10 @@ <h2>Z-scores<a class="headerlink" href="#z-scores" title="Permalink to this head
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>(array([ 6., 15., 21., 29., 20., 21., 21., 10.,  5.,  2.]),
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-         0.29181572,  0.76129843,  1.23078114,  1.70026385,  2.16974655,
-         2.63922926]),
+<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>(array([ 2., 19., 24., 28., 23., 26., 11.,  8.,  4.,  5.]),
+ array([-2.05474009, -1.57618387, -1.09762765, -0.61907143, -0.1405152 ,
+         0.33804102,  0.81659724,  1.29515346,  1.77370968,  2.25226591,
+         2.73082213]),
  &lt;a list of 10 Patch objects&gt;)
 </pre></div>
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@@ -577,7 +577,7 @@ <h2>Z-scores<a class="headerlink" href="#z-scores" title="Permalink to this head
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>&lt;matplotlib.collections.PathCollection at 0x7f1ffead45e0&gt;
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diff --git a/06-Sampling.html b/06-Sampling.html
@@ -285,7 +285,7 @@ <h2>Sampling error<a class="headerlink" href="#sampling-error" title="Permalink
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>[&lt;matplotlib.lines.Line2D at 0x7f155446ee50&gt;]
+<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>[&lt;matplotlib.lines.Line2D at 0x7f56d46860d0&gt;]
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 <img alt="_images/06-Sampling_5_1.png" src="_images/06-Sampling_5_1.png" />
@@ -438,7 +438,7 @@ <h2>Confidence intervals<a class="headerlink" href="#confidence-intervals" title
   warnings.warn(
 </pre>
 </div>
-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>0.958
+<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>0.953
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diff --git a/08-HypothesisTesting.html b/08-HypothesisTesting.html
@@ -254,7 +254,7 @@ <h2>Simple example: Coin-flipping<a class="headerlink" href="#simple-example-coi
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>0.010000000000005116
+<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>0.0
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@@ -326,7 +326,7 @@ <h2>Simulating p-values<a class="headerlink" href="#simulating-p-values" title="
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>0.0512
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diff --git a/10-BayesianStatistics.html b/10-BayesianStatistics.html
@@ -318,7 +318,7 @@ <h2>Estimating posterior distributions<a class="headerlink" href="#estimating-po
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>&lt;matplotlib.legend.Legend at 0x7f1ad373bb80&gt;
+<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>&lt;matplotlib.legend.Legend at 0x7f0804362dc0&gt;
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@@ -362,7 +362,7 @@ <h2>Estimating posterior distributions<a class="headerlink" href="#estimating-po
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diff --git a/13-GeneralLinearModel.html b/13-GeneralLinearModel.html
@@ -280,7 +280,7 @@ <h2>Linear regression<a class="headerlink" href="#linear-regression" title="Perm
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@@ -310,10 +310,10 @@ <h2>Linear regression<a class="headerlink" href="#linear-regression" title="Perm
   <th>Method:</th>             <td>Least Squares</td>  <th>  F-statistic:       </th> <td>   107.0</td>
 </tr>
 <tr>
-  <th>Date:</th>             <td>Tue, 31 Aug 2021</td> <th>  Prob (F-statistic):</th> <td>2.20e-17</td>
+  <th>Date:</th>             <td>Thu, 22 Dec 2022</td> <th>  Prob (F-statistic):</th> <td>2.20e-17</td>
 </tr>
 <tr>
-  <th>Time:</th>                 <td>14:59:55</td>     <th>  Log-Likelihood:    </th> <td> -134.44</td>
+  <th>Time:</th>                 <td>15:26:37</td>     <th>  Log-Likelihood:    </th> <td> -134.44</td>
 </tr>
 <tr>
   <th>No. Observations:</th>      <td>   100</td>      <th>  AIC:               </th> <td>   272.9</td>
@@ -367,7 +367,7 @@ <h2>Linear regression<a class="headerlink" href="#linear-regression" title="Perm
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-<div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>0.9328350998082222
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@@ -456,7 +456,7 @@ <h2>Examples of problematic model fit<a class="headerlink" href="#examples-of-pr
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 <img alt="_images/13-GeneralLinearModel_17_1.png" src="_images/13-GeneralLinearModel_17_1.png" />
@@ -483,10 +483,10 @@ <h2>Examples of problematic model fit<a class="headerlink" href="#examples-of-pr
   <th>Method:</th>             <td>Least Squares</td>  <th>  F-statistic:       </th> <td>  0.8369</td>
 </tr>
 <tr>
-  <th>Date:</th>             <td>Tue, 31 Aug 2021</td> <th>  Prob (F-statistic):</th>  <td> 0.363</td> 
+  <th>Date:</th>             <td>Thu, 22 Dec 2022</td> <th>  Prob (F-statistic):</th>  <td> 0.363</td> 
 </tr>
 <tr>
-  <th>Time:</th>                 <td>14:59:56</td>     <th>  Log-Likelihood:    </th> <td> -149.89</td>
+  <th>Time:</th>                 <td>15:26:38</td>     <th>  Log-Likelihood:    </th> <td> -149.89</td>
 </tr>
 <tr>
   <th>No. Observations:</th>      <td>   100</td>      <th>  AIC:               </th> <td>   303.8</td>
@@ -559,10 +559,10 @@ <h2>Examples of problematic model fit<a class="headerlink" href="#examples-of-pr
   <th>Method:</th>             <td>Least Squares</td>  <th>  F-statistic:       </th> <td>1.243e+04</td>
 </tr>
 <tr>
-  <th>Date:</th>             <td>Tue, 31 Aug 2021</td> <th>  Prob (F-statistic):</th> <td>4.87e-105</td>
+  <th>Date:</th>             <td>Thu, 22 Dec 2022</td> <th>  Prob (F-statistic):</th> <td>4.87e-105</td>
 </tr>
 <tr>
-  <th>Time:</th>                 <td>14:59:56</td>     <th>  Log-Likelihood:    </th> <td>  92.204</td> 
+  <th>Time:</th>                 <td>15:26:38</td>     <th>  Log-Likelihood:    </th> <td>  92.204</td> 
 </tr>
 <tr>
   <th>No. Observations:</th>      <td>   100</td>      <th>  AIC:               </th> <td>  -180.4</td> 
@@ -665,10 +665,10 @@ <h2>Extending regression to binary outcomes.<a class="headerlink" href="#extendi
   <th>Method:</th>                 <td>MLE</td>       <th>  Df Model:          </th>   <td>     2</td>  
 </tr>
 <tr>
-  <th>Date:</th>            <td>Tue, 31 Aug 2021</td> <th>  Pseudo R-squ.:     </th>   <td>0.1661</td>  
+  <th>Date:</th>            <td>Thu, 22 Dec 2022</td> <th>  Pseudo R-squ.:     </th>   <td>0.1661</td>  
 </tr>
 <tr>
-  <th>Time:</th>                <td>14:59:56</td>     <th>  Log-Likelihood:    </th>  <td> -1895.1</td> 
+  <th>Time:</th>                <td>15:26:38</td>     <th>  Log-Likelihood:    </th>  <td> -1895.1</td> 
 </tr>
 <tr>
   <th>converged:</th>             <td>True</td>       <th>  LL-Null:           </th>  <td> -2272.6</td> 
@@ -846,6 +846,12 @@ <h2>Cross-validation<a class="headerlink" href="#cross-validation" title="Permal
 </div>
 </div>
 <div class="cell_output docutils container">
+<div class="output stream highlight-none notranslate"><div class="highlight"><pre><span></span>Predicted  False  True 
+Diabetes               
+0           4397     53
+1            759     58
+</pre></div>
+</div>
 <div class="stderr docutils container">
 <pre class="stderr literal-block">/opt/conda/lib/python3.8/site-packages/pandas/core/indexing.py:671: SettingWithCopyWarning: 
 A value is trying to be set on a copy of a slice from a DataFrame
@@ -854,12 +860,6 @@ <h2>Cross-validation<a class="headerlink" href="#cross-validation" title="Permal
   self._setitem_with_indexer(indexer, value)
 </pre>
 </div>
-<div class="output stream highlight-none notranslate"><div class="highlight"><pre><span></span>Predicted  False  True 
-Diabetes               
-0           4397     53
-1            759     58
-</pre></div>
-</div>
 <div class="output text_plain highlight-none notranslate"><div class="highlight"><pre><span></span>0.7841971861977913
 </pre></div>
 </div>

diff --git a/_images/03-DataVisualization_23_1.png b/_images/03-DataVisualization_23_1.png
diff --git a/_images/04-FittingSimpleModels_46_1.png b/_images/04-FittingSimpleModels_46_1.png
diff --git a/_images/04-FittingSimpleModels_48_1.png b/_images/04-FittingSimpleModels_48_1.png
diff --git a/_images/06-Sampling_11_0.png b/_images/06-Sampling_11_0.png
diff --git a/_images/06-Sampling_13_1.png b/_images/06-Sampling_13_1.png
diff --git a/_images/06-Sampling_5_1.png b/_images/06-Sampling_5_1.png
diff --git a/_images/07-ResamplingAndSimulation_1_0.png b/_images/07-ResamplingAndSimulation_1_0.png
diff --git a/_images/07-ResamplingAndSimulation_7_0.png b/_images/07-ResamplingAndSimulation_7_0.png
diff --git a/_images/13-GeneralLinearModel_15_1.png b/_images/13-GeneralLinearModel_15_1.png
diff --git a/_images/13-GeneralLinearModel_23_1.png b/_images/13-GeneralLinearModel_23_1.png
diff --git a/_images/13-GeneralLinearModel_9_0.png b/_images/13-GeneralLinearModel_9_0.png
diff --git a/_sources/index.md b/_sources/index.md
@@ -23,7 +23,7 @@ I apologize up front that the datasets are heavily US-centric.  This is primaril
 
 This book is meant to be a living document, which is why its source is available online at [https://github.com/statsthinking21/statsthinking21-python](https://github.com/statsthinking21/statsthinking21-python).  If you find any errors in the book or want to make a suggestion for how to improve it, please open an issue on the Github site. Even better, submit a pull request with your suggested change.  
 
-The book is licensed according to the [Creative Commons Attribution 2.0 Generic (CC BY 2.0) License](https://creativecommons.org/licenses/by/2.0/).  Please see the terms of that license for more details. 
+This book is licensed using the [Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)  License](https://creativecommons.org/licenses/by-nc/4.0/).  Please see the terms of that license for more details. 
 
 ## Acknowledgements
 

diff --git a/index.html b/index.html
@@ -237,7 +237,7 @@ <h2>The golden age of data<a class="headerlink" href="#the-golden-age-of-data" t
 <div class="section" id="an-open-source-book">
 <h2>An open source book<a class="headerlink" href="#an-open-source-book" title="Permalink to this headline">¶</a></h2>
 <p>This book is meant to be a living document, which is why its source is available online at <a class="reference external" href="https://github.com/statsthinking21/statsthinking21-python">https://github.com/statsthinking21/statsthinking21-python</a>.  If you find any errors in the book or want to make a suggestion for how to improve it, please open an issue on the Github site. Even better, submit a pull request with your suggested change.</p>
-<p>The book is licensed according to the <a class="reference external" href="https://creativecommons.org/licenses/by/2.0/">Creative Commons Attribution 2.0 Generic (CC BY 2.0) License</a>.  Please see the terms of that license for more details.</p>
+<p>This book is licensed using the <a class="reference external" href="https://creativecommons.org/licenses/by-nc/4.0/">Creative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0)  License</a>.  Please see the terms of that license for more details.</p>
 </div>
 <div class="section" id="acknowledgements">
 <h2>Acknowledgements<a class="headerlink" href="#acknowledgements" title="Permalink to this headline">¶</a></h2>

diff --git a/searchindex.js b/searchindex.js