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Distributionshard
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Let XXX follow a distribution such that P(X=k)=Ck(k+1)P(X=k) = \frac{C}{k(k+1)}P(X=k)=k(k+1)C​ for k=1,2,3,…k=1, 2, 3, \dotsk=1,2,3,…. Which of the following is true regarding its moments?