Good online statistics textbooks include "OpenIntro Statistics," published by OpenIntro, and "Introductory Statistics," published by Open Textbook Library. Both publishers of these online books are organizations dedicated to providing quality open-access textbooks for students to learn introductory level information about subjects such as statistics.
"OpenInto Statistics" covers statistics topics such as an introduction to data, probability, foundations for inference, linear regression and logistic regression. Users view the textbook as web pages or as a downloadable, tablet-friendly PDF document.
"Introduction to Statistics" covers concepts of probability, discrete random variables, sampling distributions, correlations and regressions. These core concepts are introduced along with practice exercises that support learning. Students download the free textbook as a printable PDF file.