The poisson and negative exponential distributions

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Calls arrive at Lynn Ann? Fish's hotel switchboard at a rate of 1.5 per minute. The average time to handle each is 1010 seconds. There is only one switchboard operator at the current time. The Poisson and negative exponential distributions appear to be relevant in this situation.

?a) The probability that the operator is busy? =

b) The average time that caller must wait before reaching the operator=

c) The average number of calls waiting to be answered=

Reference no: EM131723862

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