on a given day, each computer in a laboratory has at most one crash. there is 5% chances that the computer has a crash during the day,independent of the performance of any other computer. there are 25 computers in the laboratory. find the probability that on a given day
a.exactly 3 crashes
b.at most 3 crashes
c.at least 3 crashes
d.more than 3 crashes and less than 6

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