The average number of phone inquiries per day at the poison control center is 2. Find the probability that it will receive exactly 4 calls o

Question

The average number of phone inquiries per day at the poison control center is 2. Find the probability that it will receive exactly 4 calls on a given day

in progress 0
Maria 30 mins 2021-09-15T19:11:18+00:00 1 Answer 0

Answers ( )

    0
    2021-09-15T19:13:02+00:00

    Answer: 0.0902

    Step-by-step explanation:

    Given : The average number of phone inquiries per day at the poison control center : \lambda=2

    The Poisson distribution function is given by :-

    \dfrac{e^{-\lambda}\lambda^x}{x!}

    Then ,  the probability that it will receive exactly 4 calls on a given day is  given by (Put x=4 and \lambda=2) :-

    \dfrac{e^{-2}2^4}{4!}=0.09022352215\approx0.0902

    Hence, the required probability : 0.0902

Leave an answer

Browse
Browse

27:3+15-4x7+3-1=? ( )