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B2. An urn contains k black balls and N -k white balls, with N known and k unknown. n balls are selected at random without replacement from the box. Construct a statistical model and use your statistic model to estimate k using the method-of-moments. Hint: Construct a statistical model such that the sample size is 1.

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Yuple.ctrvu.r frow the b.乂 ty (N, n, k) n) 0 0.43 ビ즈

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