Posted by **ayan** on Friday, March 15, 2013 at 8:07am.

The probability that it will take 5 or more flips of a fair coin before it lands on heads can be written as ab, where a and b are coprime positive integers. Find a+b.

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March 23, 2017
Posted by **ayan** on Friday, March 15, 2013 at 8:07am.

The probability that it will take 5 or more flips of a fair coin before it lands on heads can be written as ab, where a and b are coprime positive integers. Find a+b.

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