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A comment on Magician-turned-mathematician uncovers bias in coin flipping (2004). Parent comment

Re:Magician-turned-mathematician uncovers bias in coin flipp... by namenotrequired on Thursday December 24, 2020 @10:51AM (#25528530)
From the article:

> Diaconis himself has trained his thumb to flip a coin and make it come up heads 10 out of 10 times

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Re:Magician-turned-mathematician uncovers bias in coin flipp... by TylerE on Thursday December 24, 2020 @04:29PM (#25531610)
10 out of 10 isn't really that impressive.

If his actual success rate is, say, 70 out 100 10/10 is easy enough to get by chance.

990 out of 1000 would be much more pressive.

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Re:Magician-turned-mathematician uncovers bias in coin flipp... by moonchild on Thursday December 24, 2020 @05:36PM (#25532144)
It's a popular piece. ‘10 out of 10’ probably just means ‘reliably’.
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Re:Magician-turned-mathematician uncovers bias in coin flipp... by titzer on Thursday December 24, 2020 @07:44PM (#25533101)
I calculate that 70/100 gives you a 6 in a million chance of getting 10 in a row.
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Re:Magician-turned-mathematician uncovers bias in coin flipp... by MauranKilom on Thursday December 24, 2020 @09:07PM (#25533557)
6 in a million is the chance to fail 10 times in a row with 70% odds. 10 successes is 3%.
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Re:Magician-turned-mathematician uncovers bias in coin flipp... by titzer on Friday December 25, 2020 @12:22AM (#25534409)
Aw dang it, got it backwards!
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