Automobiles arrive at the drive-through window at the downtown baton rouge, louisiana, post office at the rate of 4 every 10 minutes. the average service time is 2 minutes. the poisson distribution is appropriate for the arrival rate and service times are negative exponentially distributed.
a) the average time a car is in the system = minutes (roundyour response to two decimal places).
b) the average number of cars in the system = (round your response to two decimal places).
c) the average number of cars waiting to receive service = cars.
d)the average time a car is in the queue = minutes.
e) the probability that there are no cars at the window (round your response to two decimal places).