Each chapter in turn is divided into web pages with text and Java Applets. Most of the text consists of exercises that guide the student through the development of the mathematical theory and the development of probabilistic intuition. The Java Applets are designed so that the student can run random experiments or generate data quickly and easily, with the output displayed in tables and graphs. Typically, the student can choose among different models and vary the parameters. The applets are essentially self-contained and have no mathematical prerequisites.
Many pages have links to one or more data sets from real statistical studies.