Question

Which of the following is true?
Corr (X, Y) = - Corr (Y, X)
B.
Cov (X, Y) = - Cov (Y, X)​

Answer 1

Answer:

Corr(X,Y)=0.6

∴Corr(U,V)=  

Var(U)Var(V)

​  

 

Corr(2−3X,4Y+1)

​  

=  

−3  

2

 

​  

 

4  

2

 

​  

 

Corr(−3X,4y)

​  

=  

12

−12Corr(X,Y)

​  

=−0.6

Answer 2

Answer:

corr(x,y)= -corr (x,y)