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Math Help - random probability question

  1. #1
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    random probability question

    How do I work out a formula to answer the following question


    If a person is randomly selected, find the probability that his or her B/day is not in may? Ignore leap years.
    what kind of probability should I be using? I.E Discreet probability distribution, binomial probabilty, or std normal distribution. any help appreciative!!!

    I am totally lost for a proper equation for this
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  2. #2
    Grand Panjandrum
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    Quote Originally Posted by Cribster01 View Post
    How do I work out a formula to answer the following question


    If a person is randomly selected, find the probability that his or her B/day is not in may? Ignore leap years.
    what kind of probability should I be using? I.E Discreet probability distribution, binomial probabilty, or std normal distribution. any help appreciative!!!

    I am totally lost for a proper equation for this
    Assume that a person chosen at random is equally likely to have any day
    of the year as birthday.

    Probability that birthday is in May = (number of days in May)/(number of days in year)

    RonL
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  3. #3
    GAMMA Mathematics
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    Quote Originally Posted by Cribster01 View Post
    How do I work out a formula to answer the following question


    If a person is randomly selected, find the probability that his or her B/day is not in may? Ignore leap years.
    what kind of probability should I be using? I.E Discreet probability distribution, binomial probabilty, or std normal distribution. any help appreciative!!!

    I am totally lost for a proper equation for this
    No distributions. There is only one data point. Use straight probability as CaptainBlack said.
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  4. #4
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    Than you all for your help....case closed. I do have another I will post on a new thread
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