Question: Let X1, ...,Xn be a random sample form the POI() distribution. Find the CramrRao lower bound for variances of unbiased estimators of P(X 1)

Let X1, ...,Xn be a random sample form the POI(λ) distribution. Find the Cramér–Rao lower bound for variances of unbiased estimators of P(X ≤ 1) = (1 + λ)e−λ.

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