> The overall acceptance rate for women was 4.5%, and the overall acceptance rate for men was 1.9%.
You're less than half as likely to get in as a man.
Transfer acceptance rates are even more skewed towards women.
However, it would be really hard to believe the curves for the two populations are that different even if I can certainly believe men are a bit more likely to roll the dice by applying just in case they luck out.
I suspect an admissions officer, if they were candid, would probably say something like: Look, all the students with absolutely impeccable credentials applying are probably getting admitted. Those that are unqualified are not. So we're now figuring out what's most important to us as an institution from the middle tier of applicants especially given that we're dealing with a lot of noisy signal. And, yes, one of these things is that MIT decided years ago it wanted a reasonably balanced gender ratio which we didn't used to remotely have.
This is a bit of a misunderstanding of how statistics works. This does not reflect your personal chances of being accepted, only the chances of the subset of men who applied. You are assuming that all the men were equally qualified as the women and there were no other distinguishing characteristics between the two groups.
For instance, if there is a pre-selection process for one group that there was not for another it could skew the numbers significantly and make one group much smaller with a higher acceptance rate.
While the percentage differences could indicate bias against men, it could also indicate something else.