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Chapter 9: Probability; Chapter Review

### Problem Solving

For Exercises 1 and 2, a number cube is rolled. The table shows the results. • Question 1

What is the experimental probability that the next roll will be four?

• P(4)=
• Question 2

How does the experimental probability of rolling 4 compare to the theoretical probability? Provide a reason for any discrepancy.

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• Question 3

Ginger and Micah are playing a game in which a coin is tossed twice. If heads comes up exactly once, Ginger wins. Otherwise, Micah wins. Find the sample space using a  tree diagram. Then find the probability that Ginger wins.

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• Question 4

In how many ways can the picture frames shown be arranged in a line on the wall? • Question 5

A bag of animal crackers contains 6 monkeys, 5 giraffes, 6 elephants, and 3 tigers. Maria selects a cracker at random. Then Bryan selects a cracker at random. What is the probability that two tigers are chosen?

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