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The two lines of regression of the variables x and y are 4x + 2.4y =20 and 1.6x +4y =12. The coefficient of correlation between

The two lines of regression of the variables x and y are 4x + 2.4y =20 and 1.6x +4y =12. The coefficient of correlation between x and y is (A) 0.49 B) - 0.49 (C) 0.35 (D) -0.35

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