Please Answer A,B,C,D,E. Thank you !!

a) The average number of customers waiting for haircuts =0.08 customers (round your response to two decimal places) b) The average number of customers in the shop =0.33t customers (round your response to two decimal places) c) The average time a customer waits until it is his or her turn =2.50 minutes (round your response to two decimal places) d) The average time a customer spends in the shop =10.00 minutes (round your response to two decimal places) e) The percentage of time that Rich is busy =25 percent (round your response to the nearest whole number) Customers arrive at Rich Dunn's Styling Shop at a rate of 4 per hour, distributed in a Poisson fashion Service times follow a negative exponential distribution and Rich can perform an average of 6 haircuts per hour a) The avorage number of customers waiting for haircuts = customers (round your response fo two decimal places)