Statistics, Statistical Analysis, Random Variable, Discrete Random Variable, Mathematics.
expected value can be thought of as the “average” value attained by the random variable. Assume X is a discrete random variable with range Tₓ and PMF fₓ. The expected value of X which is denoted by E[X] is E[X] = ∑ t fₓ(t) E[X] May or not belong to the range of X E[X] has same units as X I will be