The expected value of a random variable corresponds to the notion of the ________ of a sample.
A)median
B)mode
C)mean
D)range

Question

Quizplus · Accepted Answer

The expected value of a random variable is the weighted average of its possible outcomes, where the weights are the probabilities of each outcome occurring. This corresponds to the notion of the mean of a sample, which is also a weighted average of the sample values. The median and mode are measures of central tendency that may or may not coincide with the mean, while the range is a measure of dispersion, not central tendency.

The Expected Value of a Random Variable Corresponds to the Notion