(September 29, 2017 at 11:57 am)Tiberius Wrote: Suppose you have a coin, and you suspect it is unfair (i.e. it lands on one side more often than the other). You don't know which side it lands on more, and for sake of argument assume you can't find out.
How can you simulate a fair coin flip using this coin only? By "fair" I mean that you should get a "heads" result exactly 50% of the time, and a "tails" result exactly 50% of the time.
Do 100 flips and subtract the extra % that the unfair side would win from its total wins after 100 flips. So basically the unfair wins don't count as real wins.
If sample size is a problem then do it more than 100 times. But it's the same principle.