# Which door?

• Nov 27th 2006, 03:38 PM
ravengirl
Which door?
You are at a show. The host shows you three doors and ask you to pick one. Behind one of them is a car and behind the two others are nothing. You choose a door. However, before opening the door you chose, the host (he knows what is behind each door) open one of the two doors you didn't picked and shows that there is nothing behind it. He then asks you if you want to change your mind. Would you stick with your original choice, or change to the other unopened door (since the host opened one) ? god i feel stupid today
• Nov 27th 2006, 03:47 PM
Plato
Search for the Monty Hall problem.
• Nov 27th 2006, 03:49 PM
ravengirl
hmm that came up as an error..
• Nov 27th 2006, 04:06 PM
ravengirl
thank you.. i didnt even think of that... geesh
• Nov 27th 2006, 05:16 PM
Quick
Quote:

Originally Posted by ravengirl
You are at a show. The host shows you three doors and ask you to pick one. Behind one of them is a car and behind the two others are nothing. You choose a door. However, before opening the door you chose, the host (he knows what is behind each door) open one of the two doors you didn't picked and shows that there is nothing behind it. He then asks you if you want to change your mind. Would you stick with your original choice, or change to the other unopened door (since the host opened one) ? god i feel stupid today

Change doors, there is a 66% chance it's behind the other door. If you don't believe me, try it with cards and see why that is.