**Moments: -** Moments are certain mathematical constants used to as certain the nature and form of a frequency distribution. Moments in statistics are used to describe the various characteristic of a frequency distribution like *Central Tendency, Dispersion, Skewness and Kurtosis*. It is symbolized by the Greek letter μ

There are two Moments:

- Raw Moments and
- Corrected Moments

**Raw Moments** for grouped data,

Relation between **Raw Moments and Corrected Moments** for grouped data:

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