Let's Play a Game!

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Aznsilvrboy

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#1 Aznsilvrboy
Member since 2002 • 11495 Posts

Okay, it's not really a game, but suppose that I present you with three doors. Behind ONE of the three doors is a car, with one goat behind each of the other two doors. I know whats behind each door and now you get to choose one door. After you choose a door, I'll proceed to open a door with a goat behind it (NOT THE DOOR YOU CHOSE). Now I offer you the chance to switch your door of choice. Assuming that you want the CAR, should you switch or should you not?

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Cube_of_MooN

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#2 Cube_of_MooN
Member since 2005 • 9286 Posts
...what?
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mattyftm

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#3 mattyftm
Member since 2005 • 7306 Posts
Allways stick to your first choice. It makes good sense.
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Recycleation

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#4 Recycleation
Member since 2007 • 2758 Posts
I'd take the goat, sell it and buy some records.
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mattyftm

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#5 mattyftm
Member since 2005 • 7306 Posts

I'd take the goat, cell it and buy some records.Recycleation

What do you intend to do with a battery and a goat and how will you get reccords out of it??

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Aznsilvrboy

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#6 Aznsilvrboy
Member since 2002 • 11495 Posts

...what?Cube_of_MooN

What don't you understand?

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lycrof

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#7 lycrof
Member since 2005 • 6393 Posts
Ill take the goat. Ill name it Belial and start a black metal band with it and get enough money to buy a car.
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Cube_of_MooN

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#8 Cube_of_MooN
Member since 2005 • 9286 Posts

[QUOTE="Cube_of_MooN"]...what?Aznsilvrboy

What don't you understand?

After re-reading it I think I get it now. I'd stick with my choice.

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sovereign_22

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#9 sovereign_22
Member since 2008 • 1190 Posts
id take the goat and make some cheese...yes, im so cheesey
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Recycleation

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#10 Recycleation
Member since 2007 • 2758 Posts

[QUOTE="Recycleation"]I'd take the goat, cell it and buy some records.mattyftm

What do you intend to do with a battery and a goat and how will you get reccords out of it??

I edited it.
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Aznsilvrboy

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#11 Aznsilvrboy
Member since 2002 • 11495 Posts
Wow man, you guys are totally missing the point. You wanting the goat is NOT the premise of the question...:|
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martialbullet

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#12 martialbullet
Member since 2006 • 10948 Posts
Just give me the Goat!!!!!
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Cube_of_MooN

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#13 Cube_of_MooN
Member since 2005 • 9286 Posts

Wow man, you guys are totally missing the point. You wanting the goat is NOT the premise of the question...:|Aznsilvrboy

Its the OT forum, what do you expect... :|

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SteveXLR

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#14 SteveXLR
Member since 2007 • 999 Posts
That depends....... what kind of car?
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deactivated-612079a2c3358

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#15 deactivated-612079a2c3358
Member since 2004 • 1957 Posts
You should always switch as your probability of winning is 2/3 as opposed to 1/3.
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David5920072

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#16 David5920072
Member since 2008 • 46 Posts
...what?Cube_of_MooN
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Aznsilvrboy

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#17 Aznsilvrboy
Member since 2002 • 11495 Posts

That depends....... what kind of car?SteveXLR

A really nice one.

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king23_

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#18 king23_
Member since 2007 • 18169 Posts
Um, I want the car.
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SteveXLR

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#19 SteveXLR
Member since 2007 • 999 Posts

[QUOTE="SteveXLR"]That depends....... what kind of car?Aznsilvrboy

A really nice one.

Hmmmmmmm....... not sure! BTW wut is the point of this?

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Candy-Star

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#20 Candy-Star
Member since 2004 • 4378 Posts
Is it six?
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Aznsilvrboy

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#21 Aznsilvrboy
Member since 2002 • 11495 Posts
[QUOTE="Aznsilvrboy"]

[QUOTE="SteveXLR"]That depends....... what kind of car?SteveXLR

A really nice one.

Hmmmmmmm....... not sure! BTW wut is the point of this?

I will reveal the point after more people have stated their choices.

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SteveXLR

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#22 SteveXLR
Member since 2007 • 999 Posts
I guess i'll take....... THE OTHER GOAT!
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deactivated-612079a2c3358

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#23 deactivated-612079a2c3358
Member since 2004 • 1957 Posts

Explanation: Suppose that you pick the door with Goat 1 behind it. Goat 2 is revealed to you. Switching gets you the car. Now suppose you pick the door with Goat 2 behind it, Goat 1 is revealed and switching once again brings success. However, choosing the car results in either Goat 1 or 2 being revealed and switching will mean you will end up with whichever Goat has not been revealed. But there is only a 1/3 chance of this happening, whereas Success has a 2/3 chance.

Now suppose that you do not switch. Your chance of winning the car is 1/3, as there are 3 doors. 1 has a car behind it, 2 have goats.

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hokies1313

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#24 hokies1313
Member since 2005 • 13919 Posts
I stick with my choice.
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ElArab

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#25 ElArab
Member since 2007 • 5754 Posts

Allways stick to your first choice. It makes good sense.mattyftm

Yeah even when it's something as simple as taking a test and then thinking "I guess I should change my answer" and then you get it wrong when you were right the first time.

Anyway, when there's a 50 50 chance and it's just luck, I'd vote "it doesn't matter" if polls still worked.

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#26 Grey-Jack
Member since 2008 • 119 Posts
no cause chances are the one u picked first was the one with the car!
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#27 laughingman42
Member since 2007 • 8730 Posts
Stastistically you should always switch. I've seen it done before it really works.
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#28 deactivated-612079a2c3358
Member since 2004 • 1957 Posts

no cause chances are the one u picked first was the one with the car!Grey-Jack

No. Chances are it isn't.

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halo3-player

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#29 halo3-player
Member since 2006 • 6036 Posts
Door 2 i choose
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Aznsilvrboy

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#30 Aznsilvrboy
Member since 2002 • 11495 Posts

[QUOTE="mattyftm"]Allways stick to your first choice. It makes good sense.ElArab

Yeah even when it's something as simple as taking a test and then thinking "I guess I should change my answer" and then you get it wrong when you were right the first time.

Anyway, when there's a 50 50 chance and it's just luck, I'd vote "it doesn't matter" if polls still worked.

It's not a 50/50 chance...

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Aznsilvrboy

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#31 Aznsilvrboy
Member since 2002 • 11495 Posts

Explanation: Suppose that you pick the door with Goat 1 behind it. Goat 2 is revealed to you. Switching gets you the car. Now suppose you pick the door with Goat 2 behind it, Goat 1 is revealed and switching once again brings success. However, choosing the car results in either Goat 1 or 2 being revealed and switching will mean you will end up with whichever Goat has not been revealed. But there is only a 1/3 chance of this happening, whereas Success has a 2/3 chance.

Now suppose that you do not switch. Your chance of winning the car is 1/3, as there are 3 doors. 1 has a car behind it, 2 have goats.

Salvy41

Correct...wow only one person in the whole thread got it right. Way to go OT...:|

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laughingman42

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#32 laughingman42
Member since 2007 • 8730 Posts

Link for non believers. Switching is always better.

http://www.stat.sc.edu/~west/javahtml/LetsMakeaDeal.html

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kruesader

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#33 kruesader
Member since 2006 • 6443 Posts
Yep, did this in Maths 3 years ago.
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Aznsilvrboy

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#34 Aznsilvrboy
Member since 2002 • 11495 Posts
This problem is called the Monty Hall paradox/problem. I asked a lot of people this question and most got fooled (including myself when I first heard it).