Expectation i.e. ‘E[X]’ in Words
A Random variable is a variable whose value is determined by some random event. The Expectation of random variable ‘X’ i.e. E[X] is the central tendency of X when picked once randomly from the sample space (i.e. a homogeneous/ heterogeneous space of all possible outcome).
- E[X+c] = ?
So, E[X+c] = E[X] + c
2. E[cX] = ?
So, E[cX] = c.E[X]
4. Why E[XY] = E[X] * E[Y]?
5. What is Linearity of Expectation?
6. Conditional Expectation?