lesson 9-3 pages 378-380 the fundamental counting principle lesson check 9-2
TRANSCRIPT
Lesson 9-3 Pages 378-380
The Fundamental Counting Principle
Lesson Check 9-2
What you will learn!
How to use multiplication to count outcomes.
Fundamental counting principalFundamental counting principal
What you really need to know!
If event M can occur in m ways and is followed by event N that can occur in n ways, then the event M followed by N can occur in m • n ways. This is called the Fundamental Counting Principle.
What you really need to know!
Choices x Choices = Number of outcomes
Link to Pre-Made Lesson
Example 1:
The table on the next slide shows the shirts, shorts and shoes in John’s wardrobe. How many possible outfits can he choose consisting of one shirt, one pair of shorts, and one pair of shoes?
ShirtsShirts ShortsShorts ShoesShoes
redred
blueblue
whitewhite
yellowyellow
beigebeige
greengreen
blueblue
blackblack
brownbrown
4 x 3 x 2 = 24
Example 2:
An orchestra has one opening for a violinist, one opening for a cellist, and one opening for a oboist. Three musicians are trying out for violin, five for cello, and three for oboe. Find the number of ways the openings can be filled.
AA 99 BB 1111 CC 1515 DD 4545
3 x 5 x 3 = 45
AA 99 BB 1111 CC 1515 DD 4545
Page 379
Guided Practice
#’s 5-8
Pages 378-379 with someone at home and study
examples!
Read:
Homework: Page 380
#’s 9-16 all
#’s 21-26
Lesson Check 9-3
Link to 9-3 Review Problems
Page
585
Lesson 9-3
Lesson Check 9-3