Moment

probability-theory

Definition

Moment

A moment is a quantitative measure that describe the shape of a probability distribution.

Types

Raw Moment

Definition

Raw Moment

A raw moment (or simply, a moment) is calculated about the origin (zero). The -th raw moment of a random variable is given by:

Note that for , the raw moment is exactly the expected value. That’s why the expected value is called first raw moment.

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