The service-time distribution describes the probability p that the service time of the customer will be no more than t hours. if m is the mean number of customers serviced in an hour, then p=1-e^-mt. suppose a computer technical support representative can answer calls from 6 customers in an hour. what is the probability that a customer will be on hold less than 30 minutes? a. 65% c. 85% b. 75% d. 95% select the best answer from the choices provided a b c d