Chapter 14

Math Foundations—Counting Methods and Probability Review

Introduction to Counting Methods and Probability Review

You will probably see a few questions on the test that ask you to calculate the probability of an event occurring (or not occurring). You may also see problems dealing with ordering the members of a set and selecting distinct subgroups of items from a set. Understanding and practicing the following concepts will help you handle these questions on Test Day:

Counting methods: Sets Combination Permutation

Probability: Probability of multiple events

In this chapter, you will find explanations of each of these topics along with the important formulas to know. At the end of the chapter is a set of practice questions so you can improve your mastery of the concepts.