The successive flips might exhibit correlation because of the way you pick up the coin or place it on your finger. Magicians practice flipping coins consistently so that, if they are catching the coin they can make up come up the same almost every time and to do that of course they start with the same side up each time. Brent On 3/5/2016 7:07 AM, Adam P. Goucher wrote:
Because each time you toss a coin, its internal state changes?
Sent: Friday, March 04, 2016 at 11:06 PM From: "David Makin" <makinmagic@tiscali.co.uk> To: math-fun <math-fun@mailman.xmission.com> Subject: Re: [math-fun] how to test whether a coin is fair
I'd guess that you'd actually have to check the evenness of all sample rates, not just a "1" and a "0" but also "00" vs. "01" vs. "10" vs. "11" and "000" vs."001" etc............... i.e, use the same check as for checking the randomness of a pseudo random generator.
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