One of two broad classes of statistical technique, where there is no known theoretical distribution or it is too complex, and universal properties such as the ordering of values must be relied upon instead. Contrast with parametric statistics.

Defined on page 53

Used on pages 53, 81, 92, 93

Also known as non-parametric methods, non-parametric test, nonparametric methods, nonparametric test

### Links:

- Wikipedia: Nonparametric statistics
- statisticshowto.com: What is a Non Parametric Test?
- mit.edu: Nonparametric statistics and model selection