A manager of a computer store knows that 19% of PC sold out returned to his store for repair within one year. Five of these PCs, whose characteristic can be assumed to be independent of each other, are sold out. (i) What is the probability that at most two of these PCs have returned for repair? (ii) Find the mean number of PCs returned for repair and also find its variance.
A manager of a computer store knows that 19% of PC sold out returned to his store for repair within one year. Five of these PCs, whose characteristic can be assumed to be independent of each other, are sold out. (i) What is the probability that at most two of these PCs have returned for repair? (ii) Find the mean number of PCs returned for repair and also find its variance.
Chapter8: Sequences, Series,and Probability
Section8.7: Probability
Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....
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A manager of a computer store knows that 19% of PC sold out returned to his store for repair within one year. Five of these PCs, whose characteristic can be assumed to be independent of each other, are sold out. (i) What is the probability that at most two of these PCs have returned for repair? (ii) Find the
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