Noun
mathematical statistics (uncountable)
(statistics) The study of statistics from a purely mathematical standpoint, using probability theory, measure theory, linear algebra and analysis.
I believe sanity and realism can be restored to the teaching of Mathematical Statistics most easily and directly by entrusting such teaching largely to men and women who have had personal experience of research in the Natural Sciences. Ronald Fisher
In terms of merit, sports has mathematical statistics. That's how you know who the best player is. Norm Macdonald