A manufacturer of a computer chip has found that 7% of the chips that come out of production are defective. Assume that the number of defective computer chips satisfy the conditions of a binomial experiment. a) In a random sample of 500 chips, what is the expected number of defective chips?  b) Find the probability that at least 40 are defective.

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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A manufacturer of a computer chip has found that 7% of the chips that come out of production are defective. Assume that the number of defective computer chips satisfy the conditions of a binomial experiment.

a) In a random sample of 500 chips, what is the expected number of defective chips? 

b) Find the probability that at least 40 are defective. 

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