1. HW: p.39, #11 (labsheet) #12, #28-31, #33-34 Practice Quiz Today!
Math CC7/8 – Be Prepared
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HW: p.39, #11 (labsheet) #12, #28-31, #33-34
Practice Quiz Today!
WDYE Quiz on Thursday

2. Tasks for Today Warm Up Collect any signed Paperwork?
Lesson 2.4 Strategies for Theoretical Probability
Begin HW?

3. Warm Up P(Oreo) = 10/50 = 1/5 P(not CBF) = 1 – P(CBF) = 1 – 6/50
50 students at Maywood Middle school were surveyed about their favorite ice cream flavor. The results are shown below.
Ice Cream Flavor
Number of People
Who Prefer
Vanilla 10
Chocolate Chip Mint 24
Oreo
Chocolate Brownie Fudge 6
P(Oreo) = 10/50 = 1/5
1. What is the probability that a student’s favorite ice cream flavor is Oreo? Use proper notation!
2. What is the probability that a student’s favorite ice cream flavor is not Chocolate Brownie Fudge?
Use proper notation!
P(not CBF) = 1 – P(CBF)
= 1 – 6/50
= 44/50
= 22/25

6. Skip Experimental…

7. What is a good strategy for finding all the possible color pairs?
Make a tree diagram!!

8. Tree Diagram Choosing a block from 2 bags
KEY
First Bag
Second Bag
Outcome
Probability R R R R Y R Y R B B R
Start Y R Y Y Y Y B Y B R B B R Y B Y B B B

9. P (contestant will win the bonus prize) = 1/9
The theoretical probability of each pair being chosen is 1/9.
P (contestant will win the bonus prize) = 1/9

10. P (RR) = 1/9 Akimi only has a 1/9 chance of winning.
P (BR or RB) = 2/ Brelynn has a greater chance of winning

11. Yes, each contestant has a 1/9 chance of winning the bonus prize.
No, it is not likely they will win. There is a greater chance of losing.
P (winning) = 1/9 = 2/18
You would expect to win only 2 out the 18 times played.
Begin HW – labsheet ACE#11