CRVA Math Module 7 Review | Baamboozle - Baamboozle

English 19 Public

Probability of Compound Events

Study Slideshow

A bag contains the following chips: 5 blue, 11 pink, 9 white. You take a chip out of the bag without looking, replace it, then choose another chip. What is the probability that you choose blue two times?

5/25 x 5/25 = 25/625 or 1/5 x 1/5 = 1/25

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A bag contains the following chips: 5 blue, 11 pink, 9 white. You take a chip out of the bag without looking, replace it, then choose another chip. What is the probability that you choose pink then white?

11/25 x 9/25 = 99/625

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A bag contains the following chips: 5 blue, 11 pink, 9 white. You take a chip out of the bag without looking, DO NOT replace it, then choose another chip. What is the probability that you choose blue two times?

5/25 x 4/24 = 20/600 or 1/5 x 1/6 = 1/30

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You roll two number cubes (dice) numbered from 1 to 6. The sample space is shown. What is the probability of getting a sum of 11?

2/36 or 1/18

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You roll two number cubes (dice) numbered from 1 to 6. The sample space is shown. What is the probability of getting a sum of 9?

4/36 or 1/9

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You roll two number cubes (dice) numbered from 1 to 6. The sample space is shown. What is the probability of getting a sum of 13?

0/36 or 0

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You are playing the card game MATCH! There are 10 cards. You turn over one card to reveal a duck. You then pick another card at random. What is the probability that it is also a duck?

1/9

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Celine is playing a game at the school carnival. There is a box of marbles with a white, a green, a blue, and an orange marble inside. There is also a fair 12-sided die labeled with the numbers 1 through 12. How many outcomes are there?

12 x 4 = 48 outcomes

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There are 5 yellow shirts, 8 blue shirts, 4 green shirts, and 3 pink shirts in the closet. You choose one at random, then flip a coin. What is the probability that you choose a blue shirt and flip a heads?

8/20 x 1/2 = 8/40 or 1/5

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There are 5 yellow shirts, 8 blue shirts, 4 green shirts, and 3 pink shirts in the closet. You choose one at random, then flip a coin. What is the probability that you choose a yellow shirt and flip a tails?

5/20 x 1/2 = 5/40 or 1/8

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Abel makes the following statement: "I have a 30% chance of being selected captain of the baseball team and a 20% chance being elected student body president." What is the probability that Abel will be selected as both?

20% x 30% = 6% (0.2 x 0.3 = 0.06)

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Ahmed is giving away roses. He has 7 red roses, 8 yellow roses, and 9 white roses. If Mike selects a rose randomly without looking, what is the probability that he will pick a white rose then a red rose?

9/24 x 7/23 = 63/552 or 21/184

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Ahmed is giving away roses. He has 7 red roses, 8 yellow roses, and 9 white roses. If Mike selects a rose randomly without looking, what is the probability that he will pick a yellow rose then a yellow rose?

8/24 x 7/23 = 56/552 or 7/69

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Cathy used a probability simulator to pull 3 colored marbles from a bag and flip a coin 50 times. The results are shown in the two tables. What is the probability of pulling a blue marble and the coin landing tails up?

12/50 x 20/50 = 240/2500 or 12/125

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Cathy used a probability simulator to pull 3 colored marbles from a bag and flip a coin 50 times. The results are shown in the two tables. What is the probability of pulling a yellow marble and the coin landing heads up?

20/50 x 30/50 = 600/2500 or 6/25

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At a conference for 500 people, 30% of the participants are French, 15% are Americans, 5% are Germans, and the rest are of other nationalities. How many French participants are at the conference?

30% x 500 = 150 people (0.3 x 500 = 150)

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