Question: Let X1, . .., Xn (n > 2) be a random sample from the distribution of the random variable X with a Poisson distribution with

Let X1, . .., Xn (n > 2) be a random sample from the distribution of the random variable X with a Poisson distribution with rate > > 0: Define the following estimators for 1: Al := 1 ZZ X?, 12 := 1 EXi, and 13 := 4X1 + X2 Which of these estimators are unbiased? Select one: O All of them O None of them . Only 12 O 12 and 13

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