The number of telephone calls that arrive at a phone, Ask an Expert

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The number of telephone calls that arrive at a phone exchange is often modeled as a poisson random variable. assume that on average there are 10 calls per hour,

a) What is the probability that there are exactly 5 calls in one hour?

b) What is the probability that there are 3 or fewer calls in one hour?

c) What is the probability that there are exactly 15 calls in tow hours?

d) What is the probability that there are exactly 5 calls in 30 minutes?

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Statistics and Probability, Statistics

Category:- Statistics and Probability
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