On Sun, Jul 31, 2011 at 12:24 PM, prateek gupta <prateek00...@gmail.com> wrote:
> Can anyone plz tell me

H = Head
T = Tail
> 1. how to get a fair result from a unfair coin?

since the probability of HT is the same as TH in two tosses, these two
events are equiprobable. If you get a HH or TT, repeat the experiment
until TH or HT is gotten.

> 2. How to use a fair coin to get unfair result?

getting a tail on both tosses is significantly less probable than not
getting one. so, if we designate TT to be tail and any of the other
events to be head, we get an unfair result.

Hope this works.

>
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> Prateek Gupta
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