According to Washington State Department of Licensing data
January 7th, 2018
6. According to Washington State Department of Licensing data, Mark Leach, a clerk at the Pullman,Washington, Driver Licensing Office, processes six 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).