POD October 4, 2012 You do NOT need to write down the problem
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Transcript of POD October 4, 2012 You do NOT need to write down the problem
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POD October 4, 2012You do NOT need to write down the problem
An Italian restaurant offers a “create your own” pasta dish. You can choose your kind of pasta: angel hair, spaghetti, fettucine, or spiral. Then you can choose a sauce: marinara, meat, oil and garlic, or alfredo. The pasta also comes with a choice of soup or salad. Make a tree diagram to find all of the possible pasta dish combinations
What is the probability you have an angel hair pasta with a salad?
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#1
Coin and
spinner
Heads
1 2 3 4 5
tails
1 2 3 4 5
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#2
Number and color
1
Red White Blue
2
Red White Blue
3
Red White Blue
4
Red White Blue
5
Red White Blue
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#3
Color and
speed
Purple
10
18
21
24
Green
10
18
21
24
Blue
10
18
21
24
Silver
10
18
21
24
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#4
SPACE and MATH
S
M T H
P
M T H
A
M T H
C
M T H
E
M T H
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#61
HeadsAB
TailsAB
2Heads
AB
TailsAB
3Heads
AB
TailsAB
4Heads
AB
TailsAB
5Heads
AB
TailsAB
6Heads
AB
TailsAB
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#12
Boy
Boy
Boy Girl
Girl
Boy Girl
Girl
Boy
Boy Girl
Girl
Boy Girl
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#13
G
G
G
B Y
Y W B
Y W
Y W B
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Odds The odds of an event compare the
number of favorable events and unfavorable events when all outcomes are equally likely.
Odds can be written 3 ways Fraction : to
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Odds in favor
A bag contains 8 white marbles, 6 red marbles, and 12 blue marbles.
What are the odds in favor of selecting a red marble?
What the odds in favor of selecting a white marble?
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Odds against
A bag contains 4 red cards numbered 1 – 4, 4 white cards numbers 1- 4, and 4 black cards numbered 1 – 4. You choose a card at random. Odds against selecting a red card Odds against selecting a card with a 2
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Review activity for quiz on FridayQuiz will cover lessons 1 – 3 be sure to use your notes and homework assignments to help you study
Section 13.1 has more examples of odds and probability
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Probability Describe in words the probability
Getting tails when you flip a coin Rolling a 5 on a number cube Rolling a 9 on a number cube Getting either a heads or tails when you flip a
coin
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Probability and Odds Each letter in MASSACHUSETTS is written
on a separate piece of paper and put into a bag. You randomly choose a piece of paper from the bag. Find the probability of the event. Write the probability all three ways. Write the odds all three ways.
1. You choose a T2. You choose an S3. Odds in favor that you choose an N4. Odds in favor that you choose a A
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Probability and Odds A bag contains 46 blues balloons, 29 red
balloons, and 25 purple balloons.1. Probability of choosing red balloons2. Odds in favor of purple balloons3. Odds against blue balloons
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Complementary Events Mrs. Howe surveyed her class and
discovered 15% of her students are traveling to the OPRF game on Friday.
1. Identify the complement of this event. 2. Find its probability
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TREE DIAGRAMS Don’t forget each layer/decision
must be connected.