Q. If there exists a linear statistical relationship between two variable $x$ and $y$, then the regression coefficient of yon x is
A) $\frac{cov(x,y)}{\sigma_{x}\sigma_{y}}$
B) $\frac{cov(x,y)}{{\sigma^{2}}_{y}}$
C) $\frac{cov(x,y)}{\sigma_{x}^{2}}$
D) None of these
Explanation
(c)
Regression coefficient of y on x is given by $\frac{cov(x,y)}{\sigma_{x}^{2}}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.