Answered: Find the probability that of these 100…

Find the probability that of these 100 customers, the number who are satisfied is a. exactly 75 b. 73 or fewer c. 74 to 85

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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Question

An office supply company conducted a survey before marketing a new paper shredder designed for home use. In this survey, 80% of the people who tried the shredder were satisfied with it. Because of this high satisfaction rate, the company decided to market the new shredder. Assume that 80% of all people are satisfied with this shredder. During a certain month, 100 customers bought this shredder. Find the probability that of these 100 customers, the number who are satisfied is

a. exactly 75 b. 73 or fewer c. 74 to 85

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