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OpenStudy (anonymous):
what is the probability of flipping a coin 8 times and getting heads 2 times? round your answer to the nearest tenth of a percent.
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OpenStudy (dumbcow):
http://en.wikipedia.org/wiki/Binomial_distribution#Probability_mass_function \[P(x=2) = \left(\begin{matrix}8 \\ 2\end{matrix}\right) (.5)^2 (.5)^6\]
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