Hi, I would appreciate any guidance to do this exercise. I'm a lawyer and I'm quite lost with the subject:

Te question is:

Consider the following probability distribution:

X P(X)

-1 0.17

2 0.15

5 0.40

8 0.18

11 0.10

1.00

They ask (answer to four decimal places):

E(X)= _ _. _ _ _ _

V(X)= _ _. _ _ _ _

Your help is much appreciated.

Mauricio