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Math Help - Binomial distribution.

  1. #1
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    Binomial distribution.

    What is the probability that the fisherman will catch 3 fish outside the legal limits before catching the first one inside the limits?

    4C3 p^3(1-p)

    Correct?
    Last edited by mr fantastic; April 22nd 2011 at 08:07 PM.
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    Quote Originally Posted by dwsmith View Post
    What is the probability that the fisherman will catch 3 fish outside the legal limits before catching the first one inside the limits?

    4C3 p^3(1-p)

    Correct?
    Without knowing the whole question it's impossible to know if your answer is right or wrong. There is no information given about n, for starters. Are we to assume n = 4?
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    The first part is about continuous probability of a normal distribution. Then it ask what I posted. You only use the continuous information to obtain p and 1-p which I have. I have no idea what n is but the wording leads me to believe 4.
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    Quote Originally Posted by dwsmith View Post
    The first part is about continuous probability of a normal distribution. Then it ask what I posted. You only use the continuous information to obtain p and 1-p which I have. I have no idea what n is but the wording leads me to believe 4.
    Then it's a geometric distribution and the the answer will be p^3(1 - p).
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