How Can I Get Into John Hopkins Medical School?

[WayOutWestMom]

Selection bias

Selection bias is the bias introduced by the selection of individuals, groups or data for analysis in such a way that proper randomization is not achieved, thereby ensuring that the sample obtained is not representative of the population intended to be analyzed. It is sometimes referred to as the selection effect.

https://en.wikipedia.org/wiki/Selection_bias

It means compared to bio and physical science majors, very few math majors and very few humanities majors apply to med school. Med school is not a typical career path for a philosophy or a statistics major making those who do choose to apply a strongly self-selected group.