5.- Let X be a discrete random variable that takes the values 1, 2 and 3 with probabilities , y, respectively. Consider the possible simple random samples of size two. (a) Determine the distribution of the sample mean (that is, ƒ X (·)). (b) Check that the expectation of the sample mean is equal to the population mean. (c) Check that the variance of the sample mean is equal to the population variance divided by the sample size.

5.- Let X be a discrete random variable that takes the values 1, 2 and 3 with probabilities , y, respectively. Consider the possible simple random samples of size two. (a) Determine the distribution of the sample mean (that is, ƒ X (·)). (b) Check that the expectation of the sample mean is equal to the population mean. (c) Check that the variance of the sample mean is equal to the population variance divided by the sample size.

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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