(adsbygoogle = window.adsbygoogle || []).push({}); 1. The problem statement, all variables and given/known data

If n people flip a coin what is the probaility that one is at odds with the rest?

(answer is [itex] n2^{1-n} [/itex])

2. Relevant equations

3. The attempt at a solution

I tried (2/2)(1/2)(1/2)(1/2)..... and figure that equaled [itex] \frac{1}{2^{n-1}} [/itex] but that isn't the answer. :(

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Homework Help: Coin Probability

**Physics Forums | Science Articles, Homework Help, Discussion**