What is the expected number of barges in the system

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Barges arrive at the Chain of Rocks Lock in Granite City, Illinois at a rate of one every 45 minutes and times between arrivals is exponentially distributed. On average it takes 30 minutes to move a barge through the lock and this time is exponentially distributed.

What is the expected number of barges in the system?

What is the expected number in the queue?

What is the expected waiting time?

Reference no: EM132303645

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