Thursday, October 7, 2010

Coin tossing

Coin tossing is probably one of the most well known random process. Everyone at some point in their life would have tossed a coin to aid some kind of decision. If a fair coin is tossed nine (9) times and all of them turn out to be Heads. What do you expect the chance of the tenth toss to be a Head?

50/50 seems to be a popular answer. I am more inclined to believe that the 10th toss would be a Tail because the coin is probably not "fair" as we were told and so we could be looking at an outlier.

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