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Math Help - binomial probability

  1. #1
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    binomial probability

    HI; lets say I have a bistribution of (a + b)^4 where a = 5/16 and b = 11/16. what is the mean and standard deviation of the distribution? mean = na = 4*5/16 = 1.25 (that the mean of a) there must be a seperate mean for b? and seperate variances and standard deviations I assume?
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  2. #2
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    Re: binomial probability

    what you have given is a number

    $(5/16 + 11/16)^4$

    This isn't a distribution.

    Can you repost what you actually mean?
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