# Sxx Command

From GeoGebra Manual

- Sxx[List of Numbers]
- Calculates the statistic
*Σ(x*.^{2}) - Σ(x) * Σ(x)/n - Sxx[List of Points]
- Calculates the statistic
*Σ(x*using the^{2}) - Σ(x) * Σ(x)/n*x*-coordinates of the given points.