Q. If the regression coefficients are 0.8 and 0.2, then the value of coefficient of correlation is
A) 0.16
B) 0.4
C) 0.04
D) 0.164
Explanation
(b)
Given $b_{yx} = 0.8,\ b_{xy} = 0.2$
Then, $r = \sqrt{b_{xy}b_{yx} =}\sqrt{(0.8)(0.2)} = \sqrt{0.16}$
$\Rightarrow \ \ \ \ \ r = 0.4$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.