If bYX = − 0.6 and bXY = − 0.216, then find correlation coefficient between X and Y. Comment on it. Given, bYX = − 0.6, bXY = − 0.216 ∴ r = `+-sqrt("b"_"XY" * "b"_"YX")` `= +- sqrt(- 0.216 * (- 0.6)) = +- sqrt(0.1296)` ∴ r = ± 0.36 Since bXY and bYX are negative, r is also negative. ∴ r = - 0.36 ∴ X and Y negatively correlated. Concept: Properties of Regression Coefficients Is there an error in this question or solution? |