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1. Let ?1, . . . ?5 be 5 independent random variables, ?(?? = 1) =...

1. Let ?1, . . . ?5 be 5 independent random variables, ?(?? = 1) = ?(?? = 0) = 1/2. Calculate the variance of the sample variance ?5 = 1 4 ∑︀ ? (??−?[?? ])2 .

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