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  3. 2show the last line in the expectation of the variance...

Question: 2show the last line in the expectation of the variance...

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2.Show the last line in the expectation of the variance statement on sliden8is true using the definition of the 1. Use definition of binomial distribution, one special case of p to show variance, and the linearity of the expectation (hints: inside the square, split the terms into those involving x, and those involving X, j not equal to i, thern subtract the mean from 1 term and add the mean to the other term)

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