The number of telephone calls that arrive at a phone exchange is often modelled as a Poisson random variable. Assume that on the average there are 8 calls per hour. (a) Calculate the probability that...

The number of telephone calls that arrive at a phone exchange is often modelled as a Poisson random variable.<br>Assume that on the average there are 8 calls per hour.<br>(a)<br>Calculate the probability that there are 2 or less calls in one hour.<br>ANSWER: The probability that there are 2 or less calls in one hour is<br>(b)<br>Calculate the probability that there are exactly 9 calls in two hours.<br>ANSWER: The probability that there are exactly 9 calls in two hours is<br>(c)<br>Calculate the probability that there are at least 3 calls in two hours.<br>ANSWER: The probability that there are at least 3 calls in two hours is<br>

Extracted text: The number of telephone calls that arrive at a phone exchange is often modelled as a Poisson random variable. Assume that on the average there are 8 calls per hour. (a) Calculate the probability that there are 2 or less calls in one hour. ANSWER: The probability that there are 2 or less calls in one hour is (b) Calculate the probability that there are exactly 9 calls in two hours. ANSWER: The probability that there are exactly 9 calls in two hours is (c) Calculate the probability that there are at least 3 calls in two hours. ANSWER: The probability that there are at least 3 calls in two hours is

Jun 09, 2022

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The number of telephone calls that arrive at a phone exchange is often modelled as a Poisson random variable. Assume that on the average there are 8 calls per hour. (a) Calculate the probability that...

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