Brian Caffo wrote:This book is written as a companion book to the Statistical Inference¹ Coursera class as part of the Data Science Specialization². However, if you do not take the class, the book mostly stands on its own. A useful component of the book is a series of YouTube videos that comprise the Coursera class. 

The book is intended to be a low cost introduction to the important field of statistical inference. The intended audience are students who are numerically and computationally literate, who would like to put those skills to use in Data Science or Statistics. The book is offered for free as a series of markdown documents on github and in more convenient forms (epub, mobi) on LeanPub and retail outlets. 

This book is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License³, which requires author attribution for derivative works, non-commercial use of derivative works and that changes are shared in the same way as the original work.