Re: [Phys-l] Monty Hall problem

[chuck britton <cvbritton@mac.com>]

I'm having trouble finding one of these that doesn't SAY that the 
host opens a door with a goat.
What am I missing?
Once the host opens the goat door - you should switch.

Others are referring to OTHER quite distinct Monty Hall type 
scenario's that include MANY other possibilities  and parameters.

Show me (please) the Marilyn version that doesn't have the host 
opening a goat door.
Please be specific - this Suction Cup Effect is quite overpowering by now.

Thank you for your patience.
.
At 1:21 PM -0800 1/5/11, John Mallinckrodt wrote:
> chuck britton wrote:
>
> >  I'd have to read whatever 'version' is being referred to in order 
> > to agree or disagree.
> >
> >  Was she specifying a game show or a battle of nit-picking?
> >
> >  Show me your 'version'.
>
> It's not "my version."  I'm using precisely the same one that I 
> previously referred to:
>
>    https://carnot.physics.buffalo.edu/archives/2011/1_2011/msg00083.html
>
> the one from Wikipedia that Bill Robertson pointed to at the very 
> beginning of this thread:
>
>    https://carnot.physics.buffalo.edu/archives/2011/1_2011/msg00072.html
>
> the one that (as I understand it) was originally presented by Marilyn. 
>
> Again, then, it was:
>
> >  Suppose you're on a game show, and you're given the choice of 
> > three doors. Behind one door is a car, behind the others, goats. 
> > You pick a door, say #1, and the host, who knows what's behind the 
> > doors, opens another door, say #3, which has a goat. He says to 
> > you, "Do you want to pick door #2?" Is it to your advantage to 
> > switch your choice of doors?
>
>
> As much as I agree with you that the most likely intent was that the 
> host ALWAYS opens a door with a goat behind it, but it simply 
> doesn't make that clear. 
>
> I really can't believe that you think this is nitpicking as opposed 
> to talking about what happens on real game shows.  Why on Earth 
> wouldn't a game show host possibly be motivated by either a) the 
> desire to protect the prize donors by doing everything in his power 
> not to give prizes away or b) the desire to make the show more 
> attractive to viewers by helping contestants win prizes.
>
> Perhaps more importantly, I happen to have a led a dissolute enough 
> life as a youngster that I actually watched "Let's Make a Deal" 
> quite few times and I can report first hand that Monty did NOT 
> always open a door with a "goat" and offer the contestant the chance 
> to switch!
>
> John Mallinckrodt
> Cal Poly Pomona
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