Because all Victory bus passengers do not show up for their reserved seat, the Victory liner sells n = 125 tickets for a trip that holds only 120 passengers. The probability that a passenger does not show up is 0.05. Assume that the passengers behave independently a. Find the probability that Victory liner departs with empty seats b. Calculate the mean of x c. Calculate the variance of x

A First Course in Probability (10th Edition)
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ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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Because all Victory bus passengers do not show up for their reserved seat, the Victory liner sells n = 125 tickets for a trip that holds only 120 passengers. The probability that a passenger does not show up is 0.05. Assume that the passengers behave independently

a. Find the probability that Victory liner departs with empty seats

b. Calculate the mean of x

c. Calculate the variance of x

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