Question

If Correlation coeff. is 1, then coeff. Of determination is
(A) Cov(x,y) ox o y
(B) Cov(x,y) ox o y
(C) Cov(x,y) = ox o y
(D) Cov(x,y) = 0​​

Answer 1

Answer:

Answer

Given:-

Cov(x,y)=30

V(x)=25

V(y)=144

As we know formula of Corelation coefficient is:−

Let r be Corelation coefficient of x,y

Then,

r=

V(x)×V(y)

Covariance(x,y)

on solving:−

⇒r=

25×144

30

⇒r=0.5