Q. The Clear Brook High School band is holding a car wash as a fundraiser to buy new equipment. The average time to wash a car is 4 mins also time is exponentially distributed. Cars arrive at a rate of one every 5 mins or 12 every hour and the number of arrivals per time period is described by the poison distribution.
(a) Illustrate what is the average time foe car waiting in the line?
(b) Illustrate what is the average number of cars in the line?
(c) Illustrate what is the average number of cars in the system?
(d) Illustrate what is the average time in the system?
(e) Illustrate what is the probability there are more than three cars in the system?