Task 2:

(10 Marks)

At a specified point on a highway, vehicles are known to arrive according to Poisson process. Vehicles

are counted in 30-second intervals, and vehicle counts are taken in 150 of these time intervals. It was

noted that exactly zero vehicles arrived in 18 of these 150 intervals. Estimate the probability that the

time headway between successive vehicles will be between 8 and 11 seconds.

Answer: