suppose that the time between arrivals of customers at a bank during the noon-to-1pm hour has...

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suppose that the time between arrivals of customers at a bank during the noon-to-1pm hour has...

suppose that the time between arrivals of customers at a bank during the noon-to-1pm hour has a uniform distribution between 0 and 90 seconds. (round to four decimal places as needed)

A. what is the probability that the time between the arrivals of two customers will be less than 23 seconds?

B. what is the probability that the time between the arrivals of two customers will be between 28 and 70 seconds

C. What is the probability that the time between the arrivals of two customers will be greater than 69 seconds?

D. What are the mean and standard deviation of the time between the arrival of two customers?

math Statistics-And-Probability

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