Interesting stat:
according to ncaa.com (using the RPI list and the SRS list),
there are 351 MBB teams in Div. I, with 68 teams that make the tournament, which is 19.4% of the total teams.
there are 124 FB teams in Div. I FCS, with 24 teams that make the playoffs, which is 19.4% of the total teams.