# First moment synonyms

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The value obtained by dividing the sum of a set of quantities by the number of quantities in the set. For example, if there are three test scores 70, 83, and 90, the arithmetic mean of the scores is their sum (243) divided by the number of scores (3), or 81.

(Statistics) The expected value of a random variable.

The sum (for discrete variables) or integral (for continuous variables) of the product of a random variable with its probability density function, over its range of values.

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**first moment**. In this page you can discover 3 synonyms, antonyms, idiomatic expressions, and related words for**first moment**, like: arithmetic-mean, expectation and expected-value.