Question

Consider the probability distribution shown below. x 0 1 2 p(x) 0.15 0.60. 0.25 compute the expected value of the distribution.

Answer 1

1.10

Explanation:

Given the probability distribution :

x : ___ 0 ___ 1 ___ 2

p(x)__0.15 _0.60 __0.25

The expected value is obtained by:

Σ(X * p(x))

(0 * 0.15) + (1 * 0.60) + (2 * 0.25)

0 + 0.60 + 0.50

= 1.10