The expected value of a discrete random variable E(X) is the sum of all X values weighted by their respective probabilities.

Name: The expected value of a discrete random variable E(X) is the sum of all X values weighted by their respective probabilities.
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This is a definition of the expected value of a discrete random variable, which is defined as the sum of all X values weighted by their respective probabilities.

The Expected Value of a Discrete Random Variable E(X) Is