If the covariance between x and y is 30, variance of x is 25 and variance of y is 144, then what is the correlation coefficient?

If the covariance between x and y is 30, variance of x is 25 and varia

1.	If the covariance between x and y is 30, variance of x is 25 and variance of y is 144, then what is the correlation coefficient?
A.	0.4
B.	0.5
C.	0.6
D.	0.7
Answer» C. 0.6