[AnnikaL]

Highly selective STEM schools are both coed and close to 50/50 for undergrads!

* MIT is 49/51 female/male

* Harvey Mudd is 50/50

* Caltech is 43/57 (the exception, I guess)

* Olin is 52/48

Of course, these schools are not feasible options for most people but it is still a relevant counterexample.