Mathematics

Mathematics, 28.06.2019 06:40, saintsfan2004

Astock brokerage has four computers that are used for making trades. the probability that a computer fails on any single day is 0.005. failures occcur independently. any failed computers are repaired after the stock exchange closes, hence, each day is considered an independent trial. (a) what is the probability that all four computers fail on one day? (b) what is the probability that at least one computer fails on a day?

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