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 and if p 0.6, 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.

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 and if p 0.6, 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.

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

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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