Rectangular region in a certain geographic area

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Suppose that a number of plants of a particular type found in a rectangular region in a certain geographic area is a rv X with pmf P(x) = c/x^3 x = 1,2,3,... and 0 otherwise. Is E(x) finite and justify. (this is another distribution that statisticians would call heavy-tailed).

Reference no: EM131247236

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