Question: Please help me solve those questions, the questions are shown in the attachments IF XI. Y. ..... I, is a random sample from a distribution

Please help me solve those questions, the questions are shown in the attachments

IF XI. Y. ..... I, is a random sample from a distribution with puff it'll _ _ _ too U _ $ _ too otherwise . Show !" = {}, is an unbiased estimator of' !' and determine its efficiency

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