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Topic: probability question
Replies: 9   Last Post: Mar 13, 2008 4:08 PM

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Bob Delaney

Posts: 37
Registered: 9/30/05
Re: probability question
Posted: Mar 11, 2008 11:34 PM
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In article
<5289431.1205287017549.JavaMail.jakarta@nitrogen.mathforum.org>, Steven
<sgottlieb60@hotmail.com> wrote:

> Suppose you meet me on a street corner and I introduce you to my son who is
> with me. I inform you that I have another child at home. What is the
> probability that my other child is a girl.
> I looked at the sample space which I claim is bb, bg, gb and so the answer is
> 2/3. Is this correct?
> Steven


If you had said you had a younger child at home, would the probability
that your other child is a girl be 1/2?

Bob




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