In this activity, you will predict the probability of an event from the relative frequency of the event. Pablo has some one-, five-, ten-, and twenty-dollar bills in his wallet. He randomly pulls one bill out of his wallet and replaces it. He does this 40 times as part of an experiment. The table shows the number of times Pablo pulls out each bill. Bill Value Number of Times Picked
$1 6
$5 16
$10 10
$20 8
Part A
What is the relative frequency of drawing a one-dollar bill?

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Part B
What is the relative frequency of drawing a five-dollar bill?

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Part C
What is the relative frequency of drawing a ten-dollar bill?

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Part D
What is the relative frequency of drawing a twenty-dollar bill?

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Part E
Which type of bill is Pablo most likely to have the most of? How do you know?

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Part F
Which type of bill is Pablo most likely to have the least of? How do you know?

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Part G
Would you be surprised if Pablo had fewer twenty-dollar bills than one-dollar bills? What if he had fewer tens than ones? Why or why not?

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Self-Evaluation
How did you do? Rate your work on a scale of 1 to 5, with 5 as the highest score. Then write a brief evaluation of your work below. Note what you learned and what challenged you.

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