Sxy Command
From GeoGebra Manual
- Sxy[List of Numbers, List of Numbers]
- Calculates the statistic \sum xy - \frac{(\sum x) (\sum y)}{n}.
- Sxy[List of Points]
- Calculates the statistic \sum xy - \frac{(\sum x) (\sum y)}{n} using the coordinates of the given points.
