"The incidence [of polydactylism] in Caucasians is reported as 1 in 1,339 live births, compared with 1 in 143 live births in Africans and African Americans":
http://en.wikipedia.org/wiki/Polydactyly
The number of active private pilots in the U.S. is ~194,000 in a population of ~315,000,000, yielding 1 in ~1624.
(OK OK - I know it is silly and pointless and I need to get back to work! This is not intended to be a Friday Trivia thread!)
http://en.wikipedia.org/wiki/Polydactyly
The number of active private pilots in the U.S. is ~194,000 in a population of ~315,000,000, yielding 1 in ~1624.
(OK OK - I know it is silly and pointless and I need to get back to work! This is not intended to be a Friday Trivia thread!)
