Question: A large industrial pier has two cranes that load container ships. Trucks arrive in a single line and then go to the next available crane
A large industrial pier has two cranes that load container ships. Trucks arrive in a single line and then go to the next available crane when it is clear to do so. The arrival rate of the trucks is Poisson distributed. They arrive at a rate of 20 trucks per hour. Each crane works independently and can attach to the truck-pulled container and place it on the container ship in 4.8 minutes, on average. Crane loading activities follow an exponential distribution.
How many trucks are on the pier on average?
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