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Find the marginal distribution of the number of white balls

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Reference no: EM131731453

Question: An urn contains p black balls, q white balls, and r red balls; and n balls are chosen without replacement.

a. Find the joint distribution of the numbers of black, white, and red balls in the sample.

b. Find the joint distribution of the numbers of black and white balls in the sample.

c. Find the marginal distribution of the number of white balls in the sample.

Reference no: EM131731453

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