Practice to Mastery

Practice to Mastery: U.S. High School Statistics is a practice-first workbook for a first course in statistics - 1,300 original problems across 13 chapters, every one paired with a complete worked solution.

The book follows the full arc of an introductory course: collecting data and designing studies; summarizing and displaying one variable; the rules of probability; discrete and continuous random variables; the normal model; the behavior of sample means and proportions; confidence intervals; one- and two-sample hypothesis tests; chi-square procedures; correlation and regression; and one-way analysis of variance. Each chapter offers 100 problems in five graded sections - single choice, multiple select, fill in the blank, computation, and application - so students build fluency and then apply it.

What sets the solutions apart is that they teach. Every explanation states not only the correct answer but why it is correct, why the tempting alternatives fail, and - the heart of statistics - how to read the result in plain language. Numerical problems show every step with units, and the ideas students most often misread (p-values, confidence intervals, statistical significance) are explained in a way that heads off the usual misconceptions. Scenarios are drawn from healthcare, biology, and the life sciences.

All problems, data, figures, and explanations are original. Figures are clean grayscale designed to print clearly in black and white, and a full answer key with detailed explanations is collected at the back of the book. Whether used for classroom practice, homework, or independent study, this workbook turns steady practice into real mastery.

This is an independent educational publication. It is not affiliated with, authorized by, sponsored by, or endorsed by the College Board or any other testing organization.