Ahmed recently caught Covid-19. He had contact to 7 persons. Let X be the number of persons he infected, a discrete random variable. Theprobability distribution of X is as follows:13457P(X)0.0790.2030.0790.1180.280.0210.010.21Find the following probabilities (in 3 decimal places):(d) What is the probability that he infected at least 1 person?(e) What is the expectation value of the number of persons infected by him?(f) What is the variance of the number of people infected by him?

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Answered: Ahmed recently caught Covid-19. He had…

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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