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Math Help - probability die roll

  1. #1
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    probability die roll

    Brendalee and Mohammed go to a coffee shop during their lunch break and toss a coin to see who will pay. The probability that Brendalee will pay three days in a row?
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  2. #2
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    Quote Originally Posted by jax760 View Post
    Brendalee and Mohammed go to a coffee shop during their lunch break and toss a coin to see who will pay. The probability that Brendalee will pay three days in a row?
    \left( \frac{1}{2} \right)^3.
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  3. #3
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    Hi.

    They toss a coin

    The probability: Brendalee wins is = 1/2; Brendalee doesn't win = 1-1/2 = 1/2

    Now we want to know:

    probability(Brandalee loose, Brandalee loose, Brandalee loose) = 1/2 * 1/2 * 1/2 = 1/8

    Edit: aaargh, too slow.
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