Let X be a discrete random variable. Suppose the probability mass function of the random variable X is :
| x | 0 | 1 | 2 | 3 |
| f(x) | 0.2 | 0.1 | 0.4 | 0.3 |
The value of E(2X+3X2) is -
1
17.6
2
16.8
3
15.6
4
14.4
Let X be a discrete random variable. Suppose the probability mass function of the random variable X is :
| x | 0 | 1 | 2 | 3 |
| f(x) | 0.2 | 0.1 | 0.4 | 0.3 |
The value of E(2X+3X2) is -