What are the odds of 500 heads and 500 tails if a coin is flipped 1000 times?

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Offline latebind

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If you flipped a standard coin 1000(thousand) times, then what are the chances that you would get exactly 500 heads and 500 tails??



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« Last Edit: 03/01/2010 12:26:06 by chris »
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Offline RD

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The chance ... to get 500 "heads" and 500 "tails" in 1000 tosses: 2.52%.
http://saliu.com/formula.html#Binomial