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(Regression) Consider the covariance matrix E = Cov X2 3.1 What are the standard deviations for X] and X2? 3.2 Assume that means of X,

(Regression) Consider the covariance matrix E = Cov X2 3.1 What are the standard deviations for X] and X2? 3.2 Assume that means of X, and X2 are zero. Find the regression equation to predict X, as a function of X2

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