Question: You have a population consisting of = 4 elements with the following values of a variable : = {2,3,5,8} A. Calculate the mean and variance

You have a population consisting of = 4 elements with the following values of a variable :

= {2,3,5,8}

A. Calculate the mean and variance of in this finite population

b. An unbound random sample of size = 2 is subtracted from without refutation. Calculate with formulas expectation value and variance for the sample mean value

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