contains 40 U.S. quarters and seven Canadian quarters. (The coins are identical in size.) If five quarters are randomly picked from the bag, what is the probability of getting at least one Canadian quarter? (Round your answer to one decimal plac

A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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A bag contains 40 U.S. quarters and seven Canadian quarters. (The coins are identical in size.) If five quarters are randomly picked from the bag, what is the probability of getting at least one Canadian quarter? (Round your answer to one decimal place.)

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Step 1

Total quarters = 40 + 7 = 47

The number of ways to select the 5 quarters from 40 quarters is:

40!5!·(40-35)!=40!5!·35!=658008

The number of ways to select the 5 quarters from 47 quarters is:

47!5!·42!=1533939

 

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