# Nonparametric statistics

## Branch of statistics that is not based solely on parametrized families of probability distributions / From Wikipedia, the free encyclopedia

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**Nonparametric statistics** is a type of statistical analysis that makes minimal assumptions about the underlying distribution of the data being studied. Often these models are infinite-dimensional, rather than finite dimensional, as is parametric statistics.^{[1]} Nonparametric statistics can be used for descriptive statistics or statistical inference. Nonparametric tests are often used when the assumptions of parametric tests are evidently violated.^{[2]}