Q50Multiple choice
The probability distribution of a discrete random variable X is given as under: X 1 2 4 2A 3A 5A 1 1 3 1 1 1 P(X) 2 5 25 10 25 25 Calculate :
- (i)The value of A if E(X) = 2.94
- (ii)Variance of X.
The probability distribution of a discrete random variable X is given as under: X 1 2 4 2A 3A 5A 1 1 3 1 1 1 P(X) 2 5 25 10 25 25 Calculate :