Lesson 12-6 Pages 635-639 Counting Outcomes. What you will learn! 1. How to use tree diagrams or the Fundamental Counting Principle to count outcomes.

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Presentation transcript:

Lesson 12-6 Pages Counting Outcomes

What you will learn! 1. How to use tree diagrams or the Fundamental Counting Principle to count outcomes. 2. How to find the probability of an event.

Tree diagram Fundamental counting principle

What you really need to know! The Fundamental Counting Principle relates the number of outcomes to the number of choices. When you know the number of choices, you can find the probability that an event will occur.

What you really need to know! Choices x Choices = Number of outcomes

A greet-card maker offers four birthday greetings in five possible colors, as shown in the table. How many different cards can be made from four greeting choices and five color choices?GreetingColorHumorousBlue TraditionalGreen RomanticOrange “From the Group” Purple/Red

A greet-card maker offers four birthday greetings in five possible colors, as shown in the table. How many different cards can be made from four greeting choices and five color choices? 4 greetings x 5 colors = 20 ways

A cell phone company offers 3 payment plans, 4 styles of phones, and 6 decorative phone wraps. How many phone options are available? The number of types of payment plans times the number of styles of phones times the number of decorative wraps equals the number of possible outcomes

Henry rolls a number cube and tosses a coin. What is the probability that he will roll a 3 and toss heads?

H T H T H T Number Cube Coin There are 12 possible endings. The is only 1 chance out of all 12 to roll a 3 and toss heads.

Page 637 Guided Practice #’s 4-9

Pages with someone at home and study examples! Read:

Homework: Pages #’s all #’s 29 and 30 Lesson Check 12-6

Page 754 Lesson 12-6

1,12,13,14,15,16,1 1,22,23,24,25,26,2 1,32,33,34,35,36,3 1,42,43,44,45,46,4 1,52,53,54,55,56,5 1,62,63,64,65,66,6 The outcomes of rolling two number cubes. 1,12,13,14,15,16,1 1,22,23,24,25,26,2 1,32,33,34,35,36,3 1,42,43,44,45,46,4 1,52,53,54,55,56,5 1,62,63,64,65,66,6 10 with only one 3.

1,12,13,14,15,16,1 1,22,23,24,25,26,2 1,32,33,34,35,36,3 1,42,43,44,45,46,4 1,52,53,54,55,56,5 1,62,63,64,65,66,6 The outcomes of rolling two number cubes. 1,12,13,14,15,16,1 1,22,23,24,25,26,2 1,32,33,34,35,36,3 1,42,43,44,45,46,4 1,52,53,54,55,56,5 1,62,63,64,65,66,6 18 odd sums and 18 even sums.

Homework: Pages #’s all #’s all Lesson Check 12-6