Question: Let X: X2: TIE ,Xn be a random sample from a distribution with mean and variance o. 1. Show that, Y = aX is

Let X: X2: TIE ,Xn be a random sample from a distribution

Let X: X2: TIE ,Xn be a random sample from a distribution with mean and variance o. 1. Show that, Y = aX is unbiased for if a = 1. 2. S=(x - X)2 is unbiased estimation for 2 but s = (X-X) is biased.

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