Q. If $r$ is Karl Pearson’s coefficient of correlation between two sets of variates, then
A) $r < 1$
B) $r > 1$
C) $r < - 1$
D) $|r| \leq 1$
Explanation
(d)
Karl pearson’s coefficient of correlation r lies in the interval [-1, 1].
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.