On average, how busy are the servers and how likely is it that they have nothing to do?
At Joe's Pool Hall they rent tables by the hour and also rent Balabushka pool cues for purists that can't afford their own. The rental process for these cues is exhaustive and takes an hour and a half for each application. There are three leasing agents that conduct these interviews, and on average, it is one hour between customer arrivals.
Answer: The servers are busy half (0.50) of the time and there is a 0.21 probability that the system is completely empty.
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