# A weighted average of the value of a random variable, where the probability function provides weights is known as

#### A weighted average of the value of a random variable, where the probability function provides weights is known as A) a probability function B) a random variable C) the expected value D) random function

+1 vote
##### Exxpected value of the random variable is $E(X) = \sum x P(X=x)$. A weighted average of the value of a random variable, where the probability function provides weights is known as the expected value. The correct answer is C) the expected value.
answered Apr 29, 2013 by (16,100 points)
Thanks for the help