The number of content changes to a Web site follows a Poisson distribution with a mean of 0.25 per day. a) What is the probability of two or more changes in a day? b) What is the probability of no content changes in five days? c) What is the probability of two or fewer changes in five days?

The number of content changes to a Web site follows a Poisson distribution with a mean of 0.25 per day. a) What is the probability of two or more changes in a day? b) What is the probability of no content changes in five days? c) What is the probability of two or fewer changes in five days?

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

The number of content changes to a Web site follows a Poisson distribution with a mean of 0.25 per day.

a) What is the probability of two or more changes in a day?

b) What is the probability of no content changes in five days?

c) What is the probability of two or fewer changes in five days?

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