OpenIntro Statistics

OpenIntro Statistics is a dynamic take on the traditional curriculum, being successfully used at Community Colleges to the Ivy League

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OpenIntro Statistics is recommended for college courses and self-study.

Getting Started

Amazon KDP raised book print prices by ≈40% in mid-June, and they also subsequently removed free shipping from our books by pushing the minimum free shipping price up to $35 from what had been $25 (our account appears to be in the early phase of this price hike rollout, so others should expect to see this change rolled out to them soon). These changes will net Amazon over $50,000 per year from sales on OpenIntro books alone, and we expect that OpenIntro will lose money as a result of reduced sales.

We are actively exploring alternative printers to Amazon that provide better quality books as well as selling more books outside of Amazon at what we estimate will be $35 for a full-color hardcover, including shipping costs. We anticipate trialing this new approach in 2024 with one or more titles.

All of our website / resource links to Amazon are affiliate links. When you shop on Amazon using these links, we receive a small commission at no extra charge to you.

 FREE -- OpenIntro Statistics PDF

If you want to skip the optional contribution, set the price to $0

 $25 -- B&W paperback

Available on Amazon and in select bookstores

 $26.74 -- Color paperback (sometimes discounted)

The current price is royalty-free, and we plan to increase that price as early as late June, eventually increasing to $40. The $40 price will yield a $5.28 royalty to OpenIntro, with the difference remaining with Amazon. If we see a significant increase in voluntary contributions by PDF downloaders, we will delay the increase.

 FREE -- Book PDF Best for Screen Readers

More detailed table of contents, extra text to ease aid navigation (e.g. explicitly noting when an example starts and ends), and "alt text" for all images. Note that page numbers do *not* alignn with the original PDF, so please use section, figure, example, et al numbers for referencing and navigation. Please send feedback via the openintro.org/contact page.

Learning objectives

What we hope students will learn from these resources

Data sets

List of data sets and the option to download files

Where to find more data sets

An incredible list of data organized by Shonda Kuiper

Send feedback or report a typo

We appreciate feedback, both positive and negative

List of known textbook typos

Review textbook typos and clarifications


Translations + Other International Distribution

For those using a translated version, please send your warm wishes to the team behind these translations! We deeply appreciate their contributions to the community!

A Japanese translation has been created by a team of Japanese faculty! This translation is available below in both PDF (on Dr. Kunitomo's page) and as an affordable paperback (via the Japanese Statistical Association).

 FREE -- Japanese translation of OpenIntro Statistics PDF

Translation by Naoto Kunitomo, Yasushi Yoshida, & Atsuyuki Kogure

 Japanese translation, B&W paperback for ¥1980

Translated by Naoto Kunitomo, Yasushi Yoshida, & Atsuyuki Kogure

A Chinese translation is under development by Shiyao Wang and Xueqi Li! A recent draft of the progress is available below.

 FREE -- Chinese translation of Ch 1-6 (PDF)

Translation by Shiyao Wang & Xueqi Li

Follow the Chinese translation updates on WeChat

Leads to a WeChat page

The paperbacks linked below are for the English version, which is also available in several countries via Amazon.

 Click to see all international options

Paperbacks for Canada, UK, India, Germany, and more


Teachers: General Resources


Teachers: Sample Syllabi


Teachers: Sample Exams


What is Statistics?


Companion Notebook

This new resource is in beta and is an interactive learning experience. This resource can serve many purposes for different students: a way to learn material, study for an exam, check understanding, and so on. If you have feedback, please send us a note on our Contact page.

For Posit Cloud, we recommend starting with a free account and only upgrading to a paid account if you exhaust your monthly free time.

Student Guide for OS4 Companion Notebook

Video guide for a student to make use of the OS4 Companion Notebook

OS4 Companion Notebook

Interactive learning option (in beta)


Chapter 1: Intro to Data


Chapter 2: Summarizing Data


Chapter 3: Probability


Chapter 4: Distributions


Chapter 5: Foundations for Inference


Chapter 6: Inference for Categorical Data


Chapter 7: Inference for Numerical Data

 Videos for each section

Inference for categorical data: 8 videos

 Slides for each section  

Google Slides & LaTeX variants available

 Lab - Inference for numerical data

Software: R (Base), R (Tidyverse), Rguroo, Jamovi, JASP, Python, SAS, Stata

Class Activity: Correlation

Students compare and correlate movie ratings

Sample size and power (one-sample)

Supplemental section: on power in the one-sample scenario

Better understand ANOVA calculations

Supplemental section: Details behind ANOVA

Online app for Central Limit Theorem for means

This is a Shiny app for exploration


Chapter 8: Introduction to Linear Regression


Chapter 9: Multiple and Logistic Regression


More Resources


Sample Student Projects


More Free Books