If psf wants supports ten conferences and 9 of them have a typical gender ratio of 7:3 (males:females) and so they support 1 conference with a gender ratio of 3:7, then I think they're in violation of these terms.
Was PSF acting in a discriminatory manner by supporting the tenth conference?
If they picked any of the conferences based on the gender of the attendees, then they were pretty obviously discriminating based on a protected characteristic and should face legal ramifications for it.
Was PSF acting in a discriminatory manner by supporting the tenth conference?