An average of 9 cars come to the car-washing facility per day. Assume that the number of cars is Poisson distributed. Find the probability that not less than 3 cars will come to the car-washing facility during one day. Find the standard deviation of the number of cars per day.

An average of 9 cars come to the car-washing facility per day. Assume that the number of cars is Poisson distributed. Find the probability that not less than 3 cars will come to the car-washing facility during one day. Find the standard deviation of the number of cars 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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Question

An average of 9 cars come to the car-washing facility per day. Assume that the
number of cars is Poisson distributed. Find the probability that not less than 3 cars will
come to the car-washing facility during one day. Find the standard deviation of the
number of cars per day.

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