Responding to the message of <33569270.7092@mail.idt.net>
from dchiu@idt.net:
>
> IraFrdmn@aol.com wrote:
> >
> > A friend of mine gave me the following question. Ihope that you can give
> > the answer.
> >
> > A jar contains one organ either a brain or a heart. An Alien puts a brain
> > in
> > the jar. He then pulls out a brain. What`s the probability that the jar
> > originally contained a brain. I think that this is the "LETS MAKE A DEAL"
> > problem and I feel that the answer is 2/3 but then sometimes I think it is
> > 3/4?
>
>
> It is 1/2. A no brain problem?
>
> duncan
>
> .
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Judy Ann Brown
Pleasant Valley Middle School
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