Gate EC-2003 Question Paper With Solutions

Q. 66

Let Y and Z be the random variable obtained by sampling X(t) at t = 2 and t = 4 respectively. Let W = Y – Z . The variance of W is

(A) 13.36

(B) 9.36

(C) 2.64

(D) 8.00

Answer:  (C) 

Explanation: