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(2) Let Y be a binomial random variable with parameters n and p. Remember that We know that Y/n is an unbiased estimator of p. Now we want to estimate the variance of Y with n借)(1-n) (a) Find the expected value of this estimator (b) Find an unbiased estimator that is a simple modification of the proposed estimator
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TOPIC: Finding the unbiased estimator of the variance of Y based on the given estimator.

Gwen that, ;t Bin(n,r) ; then We need E(T) Eh@(i. 볶We get in pat So, the ubiasef ebmaton วา m-1 m-l

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