Adam Carolla, an improv comedian, podcaster, and versatile, hard-working C-list celebrity, has been widely denounced for telling an interviewer about running a TV show:
“They make you hire a certain number of chicks, and they’re always the least funny on the writing staff. The reason why you know more funny dudes than funny chicks is that dudes are funnier than chicks."
Obviously, Carolla should have put in "tend to" or "on average," but the reason his assertion has riled up so many people is because it's obviously true.
Remarkably, one commentator, Kyria Abrahams, went out and did some original research on this question. She watched ten short sets by by working (but not famous) stand-up comedians, mostly on late-night TV -- five women and five men -- and wrote down the topics of their bits: