Suppose that only .10% of all computers of a certain type experience CPU failure during the warranty
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Suppose that only .10% of all computers of a certain type experience CPU failure during the warranty period. Consider a sample of 10,000 computers.
m 5 .2 m 5 20 P(8 # X)
P(4 # X # 8)
P(X # 4) P(X , 4)
m 5 4 P(5 # X # 8) P(5 , X , 8)
P(X # 8) P(X 5 8) P(9 # X)
m 5 5
a. What are the expected value and standard deviation of the number of computers in the sample that have the defect?
b. What is the (approximate) probability that more than 10 sampled computers have the defect?
c. What is the (approximate) probability that no sampled computers have the defect?
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Related Book For
Probability And Statistics For Engineering And The Sciences
ISBN: 9781133169345
8th Edition
Authors: Jay L Devore, Roger Ellsbury
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