# Introduction to Probability Objective: Find the theoretical probability of an event.

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Introduction to Probability Objective: Find the theoretical probability of an event.

Random Outcomes

Theoretical Probability

Example 1

Try This Find the probability of randomly selecting a blue disk in one draw from a container that contains 2 red disks, 3 blue disks, and 3 yellow disks.

Try This Find the probability of randomly selecting a blue disk in one draw from a container that contains 2 red disks, 3 blue disks, and 3 yellow disks. The event is selecting one blue disk. The number of outcomes in the event is 3. The sample space is 8.

Example 2

Try This Find the probability of a dart landing in region B of the dartboard.

Try This Find the probability of a dart landing in region B of the dartboard.

Example 3

Try This

Fundamental Counting Principle If there are m ways that one event can occur and n ways that another event can occur, then there are m x n ways that both events can occur.

Example 4

Example 5

Homework Pages 633-634 9-23 odd 27-35 odd

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