Q. If both the regression lines intersect perpendicularly, then
A) $r < - 1$
B) $r = - 1$
C) $r = 0$
D) $r = \frac{1}{2}$
Explanation
(c)
If both two regression lines are perpendicular, then correlation coefficient will be zero.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.