[dba-Tech] The Three Doors Problem

Billy Pang tuxedo_man at hotmail.com
Thu Aug 25 21:43:21 CDT 2005


i just looked up the answer.  the accepted answer is that you should swap.  
the solution is easier to grasp if behind the other non-winning doors are 
animals of the same kind.

swapping my answer,
Billy


>From: "Stuart McLachlan" <stuart at lexacorp.com.pg>
>Reply-To: Discussion of Hardware and Software 
>issues<dba-tech at databaseadvisors.com>
>To: Discussion of Hardware and Software issues 
><dba-tech at databaseadvisors.com>
>Subject: Re: [dba-Tech] The Three Doors Problem
>Date: Fri, 26 Aug 2005 12:20:15 +1000
>
>On 25 Aug 2005 at 20:04, Arthur Fuller wrote:
>
> > I am the host of a TV program and you are the guest. This is the deal: 
>there
> > are 3 doors. Behind one of them is $100 million. Behind the other two 
>are a
> > dead catfish and a dead pickerel respectively. I invite you to select a
> > door. You choose any one of the three: call it x I open another door, 
>and
> > say, Had you selected door y, you would have won a dead catfish. Now, 
>would
> > you like to stick with your original choice or switch to the other door?
> > Does it matter? If not, why not? If so, why so?
> > There is a clear answer to this problem. Who is going to be the first to
> > come up with it?
> > Arthur
> >
> >
>
>Ah, the good old Monty Hall puzzle.
>
>Strictly speaking, you need to qualify it by saying "I open another door
>which I know contains a dead fish and show you the contents"  If you could
>open the money door by accident, it is a different situation.
>
>Anyhoo, the answers is:
>Yes it matters, you should swap.
>
>I won't give the reason now  'cause it's a spoiler.   I know some peole
>will not agree with me and will go to great lengths to explain why I am
>wrong :-)
>
>
>
>
>
>
>--
>Stuart
>
>
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