If Cov(x,y)= 1260 $s _ { x } ^ { 2 } = 1600$

Multiple Choice

If cov(x,y) = 1260, $s _ { x } ^ { 2 } = 1600$ ,and $s _ { y } ^ { 2 } = 1225$ ,then the coefficient of determination is:

A) 0.90
B) 1.23
C) 0.81
D) 0.006