Given the Least Squares Regression Line $\hat { y }$ = 352 - 127x, and a Coefficient of Determination of 0

Multiple Choice

Given the least squares regression line $\hat { y }$ = 3.52 - 1.27x, and a coefficient of determination of 0.81, the coefficient of correlation is:

A) -0.85.
B) 0.85.
C) -0.90.
D) 0.90.