Question: a. For Chapmans estimator in (13.2), let X be the random variable denoting the number of marked individuals in the second sample. What is

a. For Chapman’s estimator Ṅ in (13.2), let X be the random variable denoting the number of marked individuals in the second sample. What is the probability distribution of X?
b. Show that E[Ṅ] = N if n2 ≥ N − n1.

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