The Equation for R Involves Dividing the ________ by ________

Multiple Choice

The equation for r involves dividing the ________ by ________.

A) product of the variances of X and Y (Sx^2Sy²) ;COV_xy
B) product of the standard deviation of X and Y (S_xS_y) ;COV_xy
C) COVxy;the product of the variance of X and Y (Sx^2Sy²)
D) COVxy;the product of the standard deviation of X and Y (S_xS_y)