thursday, may 3 rd
DESCRIPTION
Thursday, May 3 rd. Warm up. Solve: 15=5 - 10x The letters EVANS PEZZINO were put in a bag. Two letters were chosen without replacement. Find P(vowel, not vowel). Write Down Math Homework Complete warm-up . Attention Attention. Checkpoint TOMORROW. Practice . Independent & - PowerPoint PPT PresentationTRANSCRIPT
THURSDAY, MAY 3RD •Write Down Math Homework•Complete warm-up
1.Solve: 15=5 - 10x
2. The letters EVANS PEZZINO were put in a bag. Two letters were chosen without replacement. Find P(vowel, not vowel)
Warm up
ATTENTION ATTENTION
Checkpoint TOMORROW
PRACTICE
Independent &
Dependent Events
Tree Diagrams
Finding outcomes……
•All outcomes are listed on the RIGHT/VERY BOTTOM•A tree diagram is a way to show all of the possible outcomes.
I have a photo of Sidney that I want to mat and frame. I can choose from a blue, purple, red, or green mat and a metal or wood frame. Describe all of the ways I could frame this photo with one mat and one frame.
You can find all of the possible outcomes by
making a tree diagram.
Example #1
• Each “branch” of the tree diagram represents a different way to frame the photo.
• The ways shown in the branches could be written as (blue, metal), (blue, wood), (purple, metal), (purple, wood), (red, metal), (red, wood), (green, metal), and (green, wood).
The Tree Diagram
A baker can make yellow or white cakes with a choice of chocolate, strawberry, or vanilla icing. Describe all of the possible combinations of cakes.
YOU TRY!
The different cake possibilities are (yellow, chocolate), (yellow, strawberry), (yellow, vanilla), (white, chocolate), (white, strawberry), and (white, vanilla).
white cakeyellow cake
chocolate icing
vanilla icing
strawberry icing
chocolate icing
vanilla icing
strawberry icing
Tree Branch
METHOD #2 COUNTING PRINCIPLE
License plates are being produced that have a single letter followed by three digits. All license plates are equally likely.
Find the number of possible license plates.Use the Fundamental Counting Principal.
letter first digit second digit third digit
26 choices10 choices 10 choices 10 choices26 • 10 • 10 • 10 = 26,000
The number of possible 1-letter, 3-digit license plates is 26,000.
Example #1
YOU TRY!1. Employee ID codes at the mall
contain 2 letters followed by 3 digits. Find the number of Possible ID Codes.
The Fundamental Counting Principle tells you only the number of
outcomes in some experiments, not what the outcomes are. A tree
diagram is a way to show all of the possible outcomes.
CLASSWORKComplete Practice A Counting Principals