Question #189370

A life insurance salesman sells on the average 3 life insurance policies per week, assuming Poisson distribution is followed. Compute the probability he sells more than 2 or more policies for duration of 2 weeks.



1
Expert's answer
2021-05-07T14:23:13-0400

We have given that,

μ=3\mu = 3

We have to find P(X2)P(X \ge 2)

Using the Poisson distribution,

P(X)=eμμxx!P(X) = \dfrac{e^{-\mu}\mu^x}{ x!}

then,

P(X2)=1(P(0)+P(1))P(X \ge 2) = 1-(P(0)+P(1))


=1e31e3(3)1= 1- \dfrac{e^{-3}}{1} - \dfrac{e^{-3}(3)}{1}


=0.811= 0.811


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