Order Your Paper From the most reliable Essay writing Service. 

.

 


Suppose Var(X)=4 and Var(Y) = 9 (a) What is the largest possible value of Cov(X, Y )? (b) What is…

Suppose Var(X)=4 and Var(Y) = 9

(a) What is the largest possible value of Cov(X, Y )?

(b) What is the smallest possible value of Cov(X, Y)?

(c) Suppose Z =3X­/2. Compute Var(Z) and Cov(X, Z), and compare your answer with part (a).