# Estimator and Bias of A Given Equation Exercises

Suppose X has the pdf 2 e е 202 0 < x < 0. πσ2 (a) (5pts.] Prove that the above function f is indeed a pdf. (b) [5pts.] Find the MLE estimator for o2. (You may skip verifying second derivativ condition) (c) [5pts.] Is the MLE from part (a) unbiased for o??

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