Assertion: box plot | /r/HasProperty | parametric
Facets:
Source sentences:
text: Box plots are non-parametric: they display variation in samples of a statistical population without making any assumptions of the underlying statistical distribution (though Tukey's boxplot assumes symmetry for the whiskers and normality for their length).
text: Box plots display differences between populations without making any assumptions of the underlying statistical distribution: they are non-parametric.