13.1 & 13.2 13.1 Find Probabilities and Odds 13.2 Find Probabilities Using Permutations

Vocabulary 13.1

Types of Probability

Odds

Example 1- Sample Space (tree diagrams help) Find the number of possible outcomes in the sample space. Then list the possible outcomes. A bag contains 4 red cards numbered 1-4, 4 white cards numbered 1-4, and 4 black cards numbered 1-4. You choose a card at random. You roll a number cube and toss a coin.

Example 2: Theoretical Probability/Odds

Example 3 Experimental Probability

Vocabulary 13.2 To find permutations, use FACTORIALS written as: n! From above, 3 letters so 3! = 3∙2∙1

Example 1- Counting Permutations Find the number of ways you can arrange: All of the letters in the given word 3 letters in the word Words: 1. Family 2. Pencils

Example 2- Evaluate the Expression 5! 2. 10! 3. 7P2 4. 25P5

Example 3- Word Problem You plan to visit 4 stores during a shopping trip. In how many orders can you visit these stores?

13.1 B Worksheet AND Pages 853-855 #6-32 even and 36 Homework 13.1 B Worksheet AND Pages 853-855 #6-32 even and 36