5.26 Harry Potter Of all the Harry Potter books purchased in a recent year, about 60% were...
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5.26 Harry Potter Of all the Harry Potter books purchased in a recent year, about 60% were purchased for readers 14 or older. If 12 Harry Potter fans who bought books that year are surveyed, find the following probabilities.
a. At least five of them are 14 or older.
b. Exactly nine of them are 14 or older.
c. Less than three of them are 14 or older.
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Related Book For 
Introduction To Probability And Statistics
ISBN: 9780176509804
3rd Edition
Authors: William Mendenhall
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