Practicing Success
Practicing Success
CUET Preparation Today
Let X be a discrete random variable. The probability distribution of X is given below:
Then E (X) is equal to which of the following?
|
3 5 4/3 4 |
4 |
E(X) = [ (30)(1/5) + (10)(3/10) + (-10)(1/2) ] = 4 |
