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The number of incoming calls to a mail order call center is

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The number of incoming calls to a mail order call center is a Poisson random variable with parameter of ?=1.8/min. What is the probability that the number of arriving calls in any minute exceeds three? What is the probability that the number of arriving calls exceeeds three during 20minute interval?

2/Find E(x) fo the following data. fD(d)= 0.08 d=0 ; 0.12 d=1; 0.18 d=2; 0.24 d=3; 0.16 d=4; 0.12 d=5 ;

0.10 d=6

Reference no: EM13627160

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