This unit contains in-depth explanations, examples, and practice problems for a beginner's study of probability. It starts with explaining what experiments, outcomes, and probability are. It deals with simple probability where all outcomes are equally likely, simple probability where all outcomes are not equally likely, mutually exclusive events, and complementary events. There is practice for each concept and mixed practice pages as well. There is also a vocabulary page. The keys to the entire unit are also included.

This unit would be very useful for distance learning since each section is explained in detail with examples to help students understand the concepts.