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(Lesson 2.11: Covariance and Correlation.) If X and Y both have mean -7 and variance 4, and Cov(X, Y) = 1, find Var(3X - Y).

(Lesson 2.11: Covariance and Correlation.) If X and Y both have mean -7 and variance 4, and Cov(X, Y) = 1, find Var(3X - Y). a. 34 O b. 36 O c. 40 O d. 41

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