Vehicles pass through a toll gate at a rate of 90 per hour. The average time to pass the gate is 36 s. The arrival and service rate follow Poisson distribution. The number of vehicles waiting in the queue is:

Vehicles pass through a toll gate at a rate of 90 per hour. The averag

1.	Vehicles pass through a toll gate at a rate of 90 per hour. The average time to pass the gate is 36 s. The arrival and service rate follow Poisson distribution. The number of vehicles waiting in the queue is:
A.	7
B.	10
C.	9
D.	8
Answer» E.