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5. Suppose that the number of plants of a particular type found in a rectangular sampling region in a certain geographic area is a random

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5. Suppose that the number of plants of a particular type found in a rectangular sampling region in a certain geographic area is a random variable X with a probability mass function p(x) = c/x3 x = 1,2, 3, ... 0 otherwise Is E(X) finite? Justify your

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