Welcome to IMS

This is the website for Introduction to Modern Statistics by Çetinkaya-Rundel and Hardin. Introduction to Modern Statistics, which we’ll refer to as IMS going forward, is a textbook from the OpenIntro project. The book will always be available for free here and will soon also be available in PDF (for free or for the amount you choose to donate to the OpenIntro project) on Leanpub and in hard copy for purchase.

Copyright © 2021.

First Edition.

Version date: June 14, 2021.

This textbook and its supplements, including slides, labs, and interactive tutorials, may be downloaded for free at

This textbook is a derivative of OpenIntro Statistics 4th Edition and Introduction to Statistics with Randomization and Simulation 1st Edition by Diez, Barr, and Çetinkaya-Rundel, and it’s available under a Creative Commons Attribution-ShareAlike 3.0 Unported United States License. License details are available at the Creative Commons website:

Source files for this book may be found on GitHub at