d) Are X and Y independent? e) Find E(X) and E(Y), Var(X) and Var(Y). f) Find the correlation coefficient of X and Y.

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A:

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A: Given : Row 1 Row 2  15 138 25 198 40 186 45 141 51 148 64 128 75 147

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A: ixiyi115160175.4862.208196213.5220197.774565.2032116316.5140153.197432.7651156414.5190182.91579.4772…

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A:

Q: Find the value of partial correlations for r,, = 0.60, r = 0.80, r,3 = 0.70 12

A: We have given that  r12 = 0.60, r23 = 0.80, r13=0.70 I want to find partial correlation.

Q: Suppose that X and Y are unknown with E(X) = 20, Var (X) = 4 , E(Y) = 12, and Var (Y) = 16. In…

A: It is given that, E(X) = 20, Var (X) = 4 and E(Y) = 12, and Var (Y) = 16 and E(XY) = 248

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A: We have given the following dataXY1225143016322031233046805090489550110

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Q: Consider a regression and correlation analysis where r2 = 1. We know that ________. A) SSE must be…

A: Given, r2 = 1

Q: Which of the following would be the value of the correlation coefficient of two variables which are…

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