BookintermediateFree
OpenIntro Statistics
by David Diez, Mine Çetinkaya-Rundel, Christopher Barr
OpenIntro Statistics is a widely acclaimed, free, and open-source textbook that provides a comprehensive introduction to statistics. It covers all fundamental concepts including descriptive statistics, probability, inference, and extensively details hypothesis testing with practical examples and clear explanations. It's often used in introductory college-level statistics courses.
