Three Curtains

rstrats · Post by **rstrats** » Thu Oct 03, 2013 7:51 am

You are a contestant on a game show. There are three curtains. Behind one of the curtains is a new car. You are asked to choose one of the curtains. Lets say that you choose curtain #1. The host of the show - who knows where the car is so as not to end the game prematurely - opens curtain #3 and there is no car behind it. The host now gives you a choice. You can stay with curtain #1 or you can change your choice to curtain #2. The question now is: would it be to your advantage to stay with curtain #1, or would it be to your advantage to change to curtain #2 or would there be no advantage either way?

keithprosser3 · Post by **keithprosser3** » Thu Oct 03, 2013 9:09 am

Ah, the old Monty Hall puzzle.

Interesting first time you come across it, but it's been done to death over the years. I admit my intuition was wrong.

olavisjo · Post by **olavisjo** » Thu Oct 03, 2013 9:09 am

[Replying to post 1 by rstrats]

You situation is very similar to the Monty Hall problem.

olavisjo · Post by **olavisjo** » Thu Oct 03, 2013 9:10 am

.

keithprosser3 wrote: Ah, the old Monty Hall puzzle.

Interesting first time you come across it, but it's been done to death over the years. I admit my intuition was wrong.

Another double post, but how were you able to get my name on it?

keithprosser3 · Post by **keithprosser3** » Thu Oct 03, 2013 9:23 am

Trade secret of the double-posters guild.

So come clean - did you get the puzzle right first time? Very few people seem to.

rstrats · Post by **rstrats** » Fri Nov 01, 2013 8:58 am

keithprosser3,

re: "Ah, the old Monty Hall puzzle."

Actually, this is completely different from the Monty Hall puzzle. The Monty Hall puzzle uses doors whereas this one uses curtains. Also, the Monty Hall puzzle has goats or some other undesirable "prize" behind two of the doors whereas this on has nothing behind two of the curtains.

keithprosser3 · Post by **keithprosser3** » Fri Nov 01, 2013 9:23 am

http://xkcd.com/1282/

Aetixintro · Post by **Aetixintro** » Fri Nov 01, 2013 4:51 pm

This is about the old Van Savant texts to New York Times...

Read all about it there...

Remembering loosely: social set-up, 1.
Some logics, making the two last 50 % each. 2.
Social set-up, voice of the show-manager, giving the curtain away. 3.

Well, well, this "curtains" thing has a story to it, regarding the smartest person in the World, a woman with the name, Van Savant, living in New York, the city!

Tiberius47 · Post by **Tiberius47** » Sat Nov 02, 2013 2:59 am

Here's a simulation where you can try it for yourself.

http://www.nytimes.com/2008/04/08/scien ... .html?_r=0

rstrats · Post by **rstrats** » Thu Apr 24, 2014 1:47 pm

Anyone?

Debating Christianity and Religion

Three Curtains

Three Curtains

Re: Three Curtains

This is about the old Van Savant texts to New York Times...

Re: This is about the old Van Savant texts to New York Times