Statistics : Principles and Methods (4th ed)

Noted for its clear and concise, statistically accurate discussions that constantly probe beyond the procedures to teach the reader the reasoning behind a method.

The authors discuss the assumptions that all statistical models make, and motivate discussions using real-life examples.

By means of good motivation, sound explanations, and an abundance of illustrations given in a real-world context, this book emphasizes more than just a superficial understanding of the material.