The expected value for a random variable is
A) the long-run average.
B) the most likely value.
C) the most frequent value observed in a random sample of observations of the random variable.
D) always np.

Question

Quizplus · Accepted Answer

The expected value of a random variable is essentially the long-run average value it takes after many repetitions of an experiment. It is a theoretical mean, not necessarily the most likely, frequent, or a specific value like np (which specifically applies to the mean of a binomial distribution).

The Expected Value for a Random Variable Is