Recent content by Otropablo

Thanks for your explanation GreatHouse. I've finally get it (thanks to the explanations from physforums members). I was a hard night (i couldn't sleep until I've understood it), but thanks to this community now I'm just a little less ignorant ;). Thanks for your time, to all of you!

Thanks a lot DH and sorry for my obstinance. I finally see the problem clearly thanks to yours (and others) explanations. I really appreciate the time you've spend in teaching me this logic. Best regards and I promes to take more time for analisys before posting like that again! Thanks a lot...

MC NEVER opens the door you choose either. So why there's a 1/3 chances of winning? You are afraid of your first choice, when you have 1/3 for car. But MC don't kick you if you choose the goat at fist stage either. Sorry for being this annoing, but I've read many threads about this, non of...

DH, give me some hope; Try to correct me on this: Car is behind A: P(win) = P(1/3 Ben chooses A, 1/2 host shows C, 1/2 Ben stays) + P( 1/3 Ben chooses A, 1/2 host shows B, 1/2 Ben stays) + P(1/3 Ben chooses B, 1/1 host shows C, 1/2 Ben switches) + P(1/3 Ben chooses C, 1/1 host shows B, 1/2 Ben...

* The contestants are not forced to choose a different door. They can either stick with the door they chose originally or switch to the remaining door after Monty shows a goat. Exactly. They WILL get to 2d stage, and choose between SWTCH or STAY (2 choices) between 2 doors, one of them has a...

HallsofIvy: Why the 2/3 shifts? Didn't you already know that the first door to be opened will be one with a goat? So who cares what door you're already choose?. There is a 50% chance between the door who you just pointed and the one the hosts just pointed. Am I wrong? I think the host showes...

I agree with Before: P(A) = 1/3, P(B or C) = 2/3 I think, for example, if car is behind A: P(win) = P(Ben chooses A, host shows C, Ben stays) + P(Ben chooses A, host shows B, Ben stays) + P(Ben chooses B, host shows C, Ben switches) + P(Ben chooses C, host shows B, Ben switches) P(win) =...

Hi everyone! Attached is an .xls who explains better the problem showing probablity of ocurrence of each single possibility on the game and it's result. Bassically, you are always assuming that you have 1/3 of chances to win. But according to game's rules, you are always 1/2. These are the...