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ThinkStats2

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Text and supporting code for Think Stats, 2nd Edition

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# ThinkStats2

The [third edition of Think Stats](https://allendowney.github.io/ThinkStats/) is available online now.
The print version will be available soon.

In the meantime, you can [order the second edition from Amazon.com](http://amzn.to/1ljRCJH).

[Download the second edition in PDF](http://greenteapress.com/thinkstats2/thinkstats2.pdf).

[Read the second edition book online](http://greenteapress.com/thinkstats2/html/index.html).

*Think Stats* is an introduction to Statistics and Data Science for Python programmers.
If you have basic skills in Python, you can use them to learn concepts in probability and statistics and practical skills for working with data.

* This book emphasizes simple techniques you can use to explore real data sets and answer interesting questions.

* It includes case studies using datasets from the National Institutes of Health and other sources.

* Many of the exercises use short programs to run experiments and help readers develop understanding.

This book is available under a Creative Commons license, which means that you are free to copy, distribute, and modify it, as long as you attribute the source and don’t use it for commercial purposes.

## Working with the code

The easiest way to work with this code it to run it on Colab, which is a
free service that runs Jupyter notebooks in a web browser.
For every chapter, I provide two notebooks: one contains the code from the
chapter and the exercises; the other also contains the solutions.

*Chapter 1:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap01ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap01soln.ipynb)

*Chapter 2:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap02ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap02soln.ipynb)

*Chapter 3:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap03ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap03soln.ipynb)

*Chapter 4:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap04ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap04soln.ipynb)

*Chapter 5:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap05ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap05soln.ipynb)

*Chapter 6:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap06ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap06soln.ipynb)

*Chapter 7:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap07ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap07soln.ipynb)

*Chapter 8:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap08ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap08soln.ipynb)

*Chapter 9:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap09ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap09soln.ipynb)

*Chapter 10:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap10ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap10soln.ipynb)

*Chapter 11:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap11ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap11soln.ipynb)

*Chapter 12:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap12ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap12soln.ipynb)

*Chapter 13:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap13ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap13soln.ipynb)

*Chapter 14:*

[Examples from the chapter](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/code/chap14ex.ipynb)

[Solutions to exercises](https://colab.research.google.com/github/AllenDowney/ThinkStats2/blob/master/solutions/chap14soln.ipynb)

If you want to run these notebooks on your own computer, you can download
them individually from GitHub or 
[download the entire repository in a Zip file](https://github.com/AllenDowney/ThinkStats2/archive/refs/heads/master.zip).

I developed this book using Anaconda, which is a free Python distribution that includes
all the packages you'll need to run the code (and lots more).
I found Anaconda easy to install.  By default it does a user-level
installation, so you don't need administrative
privileges.  You can [download it here](https://www.anaconda.com/products/individual).

ThinkStats2

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