If covariance of X and Y is 20, the standard deviation of X is 8 and standard deviation of Y is 5 then the value of coefficient of correlation is

If covariance of X and Y is 20, the standard deviation of X is 8 and s

1.	If covariance of X and Y is 20, the standard deviation of X is 8 and standard deviation of Y is 5 then the value of coefficient of correlation is
A.	1.5
B.	1
C.	0.5
D.	0.25
Answer» D. 0.25