Question

Find the variance of the following probability distribution.


X P(X)
1 0.20
2 0.35
3 0.10
4 0.25
5 0.10

Answer 1

The required formula is as follows:
\[\large Var(X)=\sum_{i=1}^{n}(x _{i}-\mu)^{2}p(x _{i})\]

Answer 2

Thank you

Answer 3

You're welcome :)