The most recent admissions annual report on the UF website says 1852 applied and 599 were accepted to IA. About 32%. My guess is that number holds true for the past few years. Everyone who checks that box doesn’t get in.
http://cloud.flipb.com/university-of-florida/admissions-2018annual-report/mobile/index.html?doc=ABFBBDB8F98F74C7E5934595BFA4CBA7&page=1#{“docid”:“ABFBBDB8F98F74C7E5934595BFA4CBA7”,“page”:16}