Question-1. Given the sets A = {1, 3, 5}, B = {2, 4, 6} and C = {0, 2, 4, 6, 8}. Which of the following ...

Question 1. The variance of random variable X i.e.  σ 2 x  or var (X) is equal to (a) E(X 2 ) + [E(X 2 ) 2 ] 2 (b) E(X) – [E(X 2 )] (c) E(X ...