Which term is used interchangeably with the mean?

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Multiple Choice

Which term is used interchangeably with the mean?

Explanation:
In probability and statistics, the term used interchangeably with the mean is the expected value. The mean is the average outcome, and the expected value generalizes this idea to random variables: for a discrete X, E[X] = sum x P(X=x); for a continuous X, E[X] = ∫ x f(x) dx. It represents the long-run average if you could repeat the experiment many times. The median is a different measure of central tendency, and variance or standard deviation describe dispersion, not central location.

In probability and statistics, the term used interchangeably with the mean is the expected value. The mean is the average outcome, and the expected value generalizes this idea to random variables: for a discrete X, E[X] = sum x P(X=x); for a continuous X, E[X] = ∫ x f(x) dx. It represents the long-run average if you could repeat the experiment many times. The median is a different measure of central tendency, and variance or standard deviation describe dispersion, not central location.

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