This problem is from the 2002 Luzerne County Math Contest:

Assume a person flips five fair coins. What is the probability of obtaining at least 4 heads?

Is there any way to do this problem without listing all the possibilites? Thanks in advance!

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- Mar 12th 2011, 08:05 PMeric1299171Math Contest Problem 3
This problem is from the 2002 Luzerne County Math Contest:

Assume a person flips five fair coins. What is the probability of obtaining at least 4 heads?

Is there any way to do this problem without listing all the possibilites? Thanks in advance! - Mar 12th 2011, 08:49 PMCaptainBlack
- Mar 20th 2011, 01:43 PMeric1299171
Thanks for the reply! I looked up the formula in a probability book I had. =)