(L&K 4.9) Suppose X is a discrete random variable with px(x) = 0.25 for x = -2, -1, 1, 2. Let Y also be a discrete random variable such that Y = X2. Show that Cov(X,Y)= 0. Therefore, uncorrelated random variables are not necessarily independent.

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A: here given , E(X) = 6 var(X) = 4.2 for Binomial Distribution  mean = E(X) = np and Variance  = npq

Q: Find the range of the following data 16,3,5,9,21,11,13,17

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Q: (9) IfX~F(ri,r2), then оо От OF rix 12 1+1x 12 ~Beta (z, z).

A: False

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