Author: James Swafford
Date: 05:24:20 10/03/02
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On October 03, 2002 at 02:15:49, allan johnson wrote: >On October 03, 2002 at 01:38:09, Uri Blass wrote: > >>On October 03, 2002 at 01:11:53, Roger D Davis wrote: >> >>>> >>>>Will it look strange if a coin toss experiment starts off with 10 heads in a >>>>row? Sure, a little strange. But it happens. >>> >>>Ten in a row! This is amazing! How often does it happen, Dan? >>> >>>Roger >> >>In 1/1024 of the cases. >> >>If you ask for the probability to see 10 times the same result than it can be >>also tail so the probability is 1/512 >> >>Uri > Statistically maybe but has anyone ever bothered to test it?Just curious. > Al I don't understand your comment. One in 2^10 == 1/1024. *2 = 1/512. If you believe the odds of heads is 50%, that's the probability. This doesn't mean in practice that on the 512th run of your experiment you will get 10 heads (or tails). Odds are pretty low, actually. But if you repeat this experiment many many many times, and divide how many times you get 10 consecutive by how many times you "started flipping", the ratio will be close to 1/512. -- James
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