Raw moments of Raw data and group data. Learn Somethings

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⚫What is Raw moments ?
➡️A raw moment is a moment of a probability function taken about zero.
➡️ It is also known as a moment about the origin.
➡️ Raw Moment -- from Wolfram MathWorld Raw Moment * A moment of a probability function taken about 0, * The raw moments (sometimes also called "crude moments") can be expressed as terms of the central moments (i.e., those taken about the mean ) using the inverse binomial transform. * with and (Papoulis 1984, p. Wolfram MathWorld
⚫Raw moments are measured about any arbitrary point A (say).
If A is taken to be zero then raw moments are called moments about origin.
When A is taken to be Arithmetic mean we get central moments.
The first raw moment about origin is mean whereas the first central moment is zero.