This document provides examples and explanations of key concepts in probability, including: 1) Probability is a number between 0 and 1 that indicates the likelihood of an event. Experimental probability is calculated from observations, while theoretical probability uses the composition of a sample space. 2) Tree diagrams and the fundamental counting principle can be used to determine the number of possible outcomes and probabilities in multi-stage experiments. 3) Union, intersection, and complements of events are probability concepts used to calculate probabilities of combined events.

1. Chapter 10 Probability

56. Probability Tree Diagrams

75. Initial Problem Solution, cont’d