5 coins are tossed, find probability that exactly 4 are heads. is there a way to do this without writing all of the combinations out? a short cut?
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Originally Posted by algebra2 5 coins are tossed, find probability that exactly 4 are heads. is there a way to do this without writing all of the combinations out? a short cut? Yes. Use the Binomial distribution: Binomial distribution - Wikipedia, the free encyclopedia
Originally Posted by algebra2 5 coins are tossed, find probability that exactly 4 are heads. is there a way to do this without writing all of the combinations out? a short cut? $\displaystyle {5 \choose 4} \left( \frac{1}{2} \right) ^{4} \left( \frac{1}{2} \right) ^{1} $
Last edited by janvdl; May 26th 2008 at 08:16 PM. Reason: Stupid little bracket...
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