**univariate statistics**.
If we examine the relationship between two variables, we refer to it as **bivariate statistics**.
If the relationships among several variables are simultaneously examined, we refer to it as **multivariate statistics**.
**Measures of relation** provide means of summarizing the relation between two variables.

**Citation**

The E-Learning project SOGA-Py was developed at the Department of Earth Sciences by Annette Rudolph, Joachim Krois and Kai Hartmann. You can reach us via mail by soga[at]zedat.fu-berlin.de.

You may use this project freely under the Creative Commons Attribution-ShareAlike 4.0 International License.

Please cite as follow: *Rudolph, A., Krois, J., Hartmann, K. (2023): Statistics and Geodata Analysis
using Python (SOGA-Py). Department of Earth Sciences, Freie Universitaet Berlin.*