The expected number of calls in a call center within an hour is known to have a Poisson distribution with expected value 5.3 infections. 1) Compute the probability of at least 7 calls in an hour )Compute the probability of at most 9 calles by the end of this houre, if it is known that there were at least 3 calles till now. 3) What is standard deviation of number of calles.

The expected number of calls in a call center within an hour is known to have a Poisson distribution with expected value 5.3 infections. 1) Compute the probability of at least 7 calls in an hour )Compute the probability of at most 9 calles by the end of this houre, if it is known that there were at least 3 calles till now. 3) What is standard deviation of number of calles.

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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