Let X1,X2, X3, X4 be a random sample of size 4 from a gamma distribution with parameters a = 3 and ß = 0, and let Y = E1 Xj. %3D a. Find the distribution ofY b. Is Y an unbiased estimator of 0. c. Find the value of c so that cY is an unbiased estimator of 0.

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