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Math Help - Roll a Die question help please

  1. #1
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    Roll a Die question help please

    if i roll a die 600 times. whats the mean and standard deviation of the number of 3's that show?
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  2. #2
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    Re: Roll a Die question help please

    probability problems go in the statistics forum
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    Re: Roll a Die question help please

    Quote Originally Posted by Nasc0 View Post
    if i roll a die 600 times. whats the mean and standard deviation of the number of 3's that show?

    If p is the probability of success and N is the number of trials then the mean is \mu=p\cdot N and \sigma=\sqrt{Np(1-p)}.
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