What is the mean of a random variable

Asked by Topperlearning User | 4th Jun, 2014, 01:23: PM

Expert Answer:

Mean of a random variable: Let X be a random variable whose possible values x1, x2, x3, ..., xn occur with probabilities p1, p2, p3,..., pn, respectively. The mean of X, denoted by .

Also, the mean of a random variable X is also called the expectation of X, denoted by E(X).

Answered by  | 4th Jun, 2014, 03:23: PM