Question: Let (jtj,... ,xn) be a random sample from a random phenomenon specified by the probability mass function Find an unbiased estimator of 0 2. Does

Let (jtj,... ,xn) be a random sample from a random phenomenon specified by the probability mass function

e-90 if x = 0,1,...,n otherwise. Px(x|0) = x! 0

Find an unbiased estimator of 0 2.

Does 0 -2 have an unbiased estimator?

e-90 if x = 0,1,...,n otherwise. Px(x|0) = x! 0

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