Just a little under a third (32%) of all of today's billionaires never got a college degree. In addition, three times as many billionaires have degrees in the Arts than billionaires who have degrees in Math, Finance or Science.

A while back I posted 7 reasons not to get an MBA, so I guess the eighth reason would be "most billionaires don't have one."  In any case, here's an infographic with the actual numbers, courtesy of the market research firm Approved Index.