An average of 2.5 visitors come to the barber’s during a day. Assume that the number of visitors is Poisson distributed. What is the probability that 4 visitors will come in one day? Find the standard deviation of the number of visitors per day

An average of 2.5 visitors come to the barber’s during a day. Assume that the number of visitors is Poisson distributed. What is the probability that 4 visitors will come in one day? Find the standard deviation of the number of visitors per day

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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An average of 2.5 visitors come to the barber’s during a day. Assume that the
number of visitors is Poisson distributed. What is the probability that 4 visitors will come
in one day? Find the standard deviation of the number of visitors per day

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D = 129 , E = 56 , F = 134