Not binary, but pretty strongly bimodal. Using a single criteria like height already gets you an 80% accurate classifier in homogenous regions, adding a few mor

Not binary, but pretty strongly bimodal. Using a single criteria like height already gets you an 80% accurate classifier in homogenous regions, adding a few more can easily get you to 99%. Also worth noting that "masculine" and "feminine" are heavily culturally constructed (e.g. wearing make up, long hair and dresses).