In a Single Channel Manual Soft Cloth Wash, Cars Arrive

Multiple Choice

In a single channel manual soft cloth wash, cars arrive following Poisson distribution at the rate of 8 per hour. It takes an average of 6 minutes to wash a car, and the service time follows exponential distribution. The average number of cars in the system will be

A) 0.8
B) 3.2
C) 5
D) 4