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    Meekdocile2006's Avatar
    Meekdocile2006 Posts: 2, Reputation: 1
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    #1

    Aug 15, 2012, 04:03 PM
    probability problem
    ashlea is planning on having 8 children. Determine the probability that all of her children will be girls. If her first 7 children are girls and she is expecting another child, what is the probability that her eighth child will be a girl?
    gmaof04's Avatar
    gmaof04 Posts: 33, Reputation: 3
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    #2

    Aug 15, 2012, 04:05 PM
    If it is the same sperm donor, I would say the chances are high, that it will be a female. Simple odds...
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #3

    Aug 15, 2012, 09:58 PM
    I don't see how being the same sperm donor will make the odds in favor of another female...
    Kahani Punjab's Avatar
    Kahani Punjab Posts: 510, Reputation: 203
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    #4

    Aug 16, 2012, 01:52 AM
    MeekDocile2006,

    Welcome to this wonderfully beautiful site, first!

    The probability that all will be girls i.e. GGGGGGGG is 1/ = 1/256
    If her first 7 children are girls, then -
    The probablitiy that her eighth child will be a girl is 1/2
    JudyKayTee's Avatar
    JudyKayTee Posts: 46,503, Reputation: 4600
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    #5

    Aug 16, 2012, 07:04 AM
    Quote Originally Posted by Meekdocile2006 View Post
    ashlea is planning on having 8 children. Determine the probability that all of her children will be girls. If her first 7 children are girls and she is expecting another child, what is the probability that her eighth child will be a girl?

    We don't do homework - if you post your answer someone will come along to correct it.

    You don't learn anything if we do the work for you.
    Meekdocile2006's Avatar
    Meekdocile2006 Posts: 2, Reputation: 1
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    #6

    Aug 16, 2012, 12:08 PM
    Thank You so much!
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #7

    Aug 17, 2012, 12:21 AM
    Quote Originally Posted by Meekdocile2006 View Post
    Thank You so much!
    Did you understand why you need to calculate ?
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