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Old 2005 June 12th, 04:41 PM   #22 (permalink)
manasi4gre
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Re: one probability question

Quote:
Originally Posted by Dkumar
The probability is 1/2 that a certain coin will turn up heads on any given toss. If the coin is to be tossed three times, what is the probability that on at least one of the tosses the coin will turn up heads?
The answer is 3/8.
How did u get this answer?
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