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Probability of a probability

  1. Jul 21, 2010 #1
    Imagine a simple chocolate bar promotion in which there is a 6 in 1 chance of winning another bar. My question is; If you buy six bars, what is the chances that at least one will be a winner?
     
  2. jcsd
  3. Jul 21, 2010 #2

    CompuChip

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    This is not a probability of a probability.
    It is simply a binomial distribution, letting X = the number of winners in the 6 that you buy, you want to calculate P(X >= 1 | n = 6, p = 1/6)
     
  4. Jul 21, 2010 #3

    CRGreathouse

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    One minus the chance that none are winners.
     
  5. Jul 23, 2010 #4
    6 in 1 chance?

    I guess you mean 1 in 6 chance.
     
  6. Jul 28, 2010 #5
    0.665102023319615912208504801098..........
     
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