Q. 1 If E denotes expectation, the variance of a random variable X is given by
(A) E X − E X
(B) E X + E X
(C) E X
(D) E X
Answer: (A)
Explanation:
Q. 1 If E denotes expectation, the variance of a random variable X is given by
(A) E X − E X
(B) E X + E X
(C) E X
(D) E X
Answer: (A)
Explanation:
