The expected value of a discrete random variable
A) is the most likely or highest probability value for the random variable.
B) will always be one of the values x can take on, although it may not be the highest probability value for the random variable.
C) is the average value for the random variable over many repeats of the experiment.
D) is the value it is expected to assume in the next trial.

Question

Quizplus · Accepted Answer

The expected value of a discrete random variable is the average value for the random variable over many repeats of the experiment. It is calculated by weighting each possible outcome by its probability and summing them up. This value may not be the most likely or highest probability value for the random variable. It is also not necessarily the value that will occur in the next trial.

The Expected Value of a Discrete Random Variable