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Math Help - Binomial Probability

  1. #1
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    Smile Binomial Probability

    I'm having an difficult time, determining how to to start in setting up the problem.

    Use the binomial probability to show x successess given to the probability of p of success in an single trial.

    n = 5, x = 2 , p = 0.25
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  2. #2
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    {5 \choose x} \left(0.25\right)^x \left(0.75\right)^{5-x}
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  3. #3
    MHF Contributor
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    Hi

    Binomial law is used when you repeat n independent experiences whose result can only be "success" with a probability p or "failure" with a probability (1-p)

    The probability to get k success in n trials is given by the formula

    P(X=k) = \binom{n}{k} p^k (1-p)^{n-k}
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