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Old 07-15-2012, 03:56 AM
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htlin htlin is offline
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Join Date: Aug 2009
Location: Taipei, Taiwan
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Default Re: question about probability

Quote:
Originally Posted by nyxee View Post
the answer is very clear but how do we know when to use this not.

to clarify my question, if say P(ten heads)=p and P(not ten heads)=q (=1-p). why does using (p^1000) give the wrong answer?
p^{1000} means the probability of getting ten heads in each of the independent random trials. Is that the event you are interested in?
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