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Consider the following discrete random distribution: P(x) .15 1 .20 2 30 3 .20 4 .15 What is the variance of the distribution? 1.0 1.6 2.0 1.2 15

Consider the following discrete random distribution: P(x) .15 1 .20 2 30 3 .20 4 .15 What is the variance of the distribution? 1.0 1.6 2.0 1.2 15

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Please answer the question on both pictures. They are unrelated in nature. 

Consider the following discrete random distribution: P(x) .15 1 .20 2 30 3 20 .15 What is the variance of the distribution? O 1.0 1.6 2.0 1.2 1.5
Transcribed Image Text:Consider the following discrete random distribution: P(x) .15 1 .20 2 30 3 20 .15 What is the variance of the distribution? O 1.0 1.6 2.0 1.2 1.5
Ship collisions in the Vancouver harbour are rare. Suppose the number of collisions is Poisson distributed, with a mean of 1.2 collisions every four months. Appendix A Statistical Tables а. What is the probability of having no collisions occur over a four-month period? (Round your answer to 4 decimal places, e.g. 0.7895.)
Transcribed Image Text:Ship collisions in the Vancouver harbour are rare. Suppose the number of collisions is Poisson distributed, with a mean of 1.2 collisions every four months. Appendix A Statistical Tables а. What is the probability of having no collisions occur over a four-month period? (Round your answer to 4 decimal places, e.g. 0.7895.)
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