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The mean of a random variable is the weighted average of the values that the random variable can take, where each value is weighted by its respective probability.

Table of Contents


The term mean is a synonym of the terms expected value and expectation.

More details

The lecture entitled Expected value provides more details about the concept of mean.

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How to cite

Please cite as:

Taboga, Marco (2021). "Mean", Lectures on probability theory and mathematical statistics. Kindle Direct Publishing. Online appendix.

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