Suppose you have a sample of size n for variables X and Y. The sample covariance of X and Y is Cov(X,Y) = 1,000, the sample standard deviation for X is S x =20 and the sample standard deviation for Y...

Suppose you have a sample of size n for variables X and Y. The sample covariance of X and Y is  Cov(X,Y) = 1,000, the sample standard deviation for X is S_x=20 and the sample standard deviation for Y is  S_Y=75.  What is the sample correlation coefficient, r?