With regards to what your professor said regarding the performance of women in computer science programs: I think that generally when there is a minority group

With regards to what your professor said regarding the performance of women in computer science programs: I think that generally when there is a minority group within a program, that minority does relatively well. So many people choose their program because it's the status quo for their gender/race/social status/etc. The people who choose a program outside of what is expected of them probably do so because they have a strong aptitude in that area or are very interested and motivated by the subject.