## Sxx Command

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This article is about GeoGebra command.

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- Sxx[ <List of Numbers> ]
- Calculates the statistic \(\sum x^2 - \frac{(\sum x)^2}{n}\).

- Sxx[ <List of Points> ]
- Calculates the statistic \(\sum x^2 - \frac{(\sum x)^2}{n}\) using the
*x*-coordinates of the given points.