customers per hour, on average. a. Determine the probability the amount of time Mark takes to process the next customer is less than 12minutes. b. Determine the
probability the amount of time Mark takes to process the next customer exceeds 20minutes. c. Determine the probability the amount of time Mark takes to process the
next customer is between 8 and 15minutes (in the interval 8 to 15 minutes).

 

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