Tossing a coin is 50-50, right?
Persi Diaconis is a Stanford Math Professor - and former magician.
Just one of his claims to fame is research into the randomness of coin flips.
He helped out Numberphile with this series of videos.
Second, should you catch a coin or let ut fall to the ground? The answer may surprise you.
And last, here is just some extra footage which is also interesting.
And a bonus, one of the very early Numberphile videos about coin tosses at the Super Bowl!