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# CBSE Class 12-science Answered

What is the mean of a random variable
Asked by Topperlearning User | 04 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 | 04 Jun, 2014, 03:23: PM

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