Answer to Question #337661 in Statistics and Probability for Asma

Question

Q1: A firm has three telephone numbers. They receive numbers of calls that follow Poisson distributions, the first having a mean of 9, the second 6 and the third 7 in a period of half an hour. Find the probability that a) the second and third lines will receive a total of exactly eight calls in haft an hour b) the firm will receive at least four calls in half an hour c) line two will receive at most six calls one hour d ) line one will receive no call in 15 minutes

Answer 1

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