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For a certain coin, Q, is a uniform (0, 1) random variable. Given Q = q, each flip is heads with probability q, independent of any other flip. Suppose this coin is flipped n times. Let K denote the number of heads in n flips.
(a) What is the ML estimator of Q given K?
(b) What is the PMF of K? What is E[K]?
(c) What is the conditional PDF fQ|K (q|k)?
(d) Find the MMSE estimator of Q given K = k.
Illustrate by computation that, for straight -line regression of Y on x, β1= 0.
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