If "1 in 5" was true, more than 1 women would be raped each and every day, every single day of the year, on average

Total students enrolled at Harvard: 28,147

Gender distrubition at Harvard: 51% female, 49% male

Average length of study at Harvard: Couldn't find a source, but will work with both 5 and 7 years, which should put it higher than reality, which makes these statistics lower, shorter period of study = higher rapes pr. day rate

So from these numbers, we can estimate that 14,355 female students attend Harvard, of which supposedly 2871 are raped during their time at Harvard.

If average years spent as student there is 5 years, that means 574.2 rapes pr. year If average years spent as student there is 7 years, that means 410 rapes pr. year

With 365.25 days to a year, that gives us 1.12 to 1.57 rapes each and every day at Harvard University on average.

That just doesn't seem at all plausible