If cov(x,y) = -350, $s _ { x } ^ { 2 }$ = 900 and $s _ { y } ^ { 2 }$ = 225, then the coefficient of correlation is:
A)0.8819.
B)0.7778.
C)-0.0017.
D)0.0017.

Name: If cov(x,y) = -350, $s _ { x } ^ { 2 }$ = 900 and $s _ { y } ^ { 2 }$ = 225, then the coefficient of correlation is: A)0.8819. B)0.7778. C)-0.0017. D)0.0017.
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The Answer of If cov(x,y) = -350, $s _ { x } ^ { 2 }$ = 900 and $s _ { y } ^ { 2 }$ = 225, then the coefficient of correlation is:
A)0.8819.
B)0.7778.
C)-0.0017.
D)0.0017.

If Cov(x,y) = -350 sx2s _ { x } ^ { 2 }sx2​

If Cov(x,y) = -350 $s _ { x } ^ { 2 }$