The Confusion Squid has many tentacles
E pluribus unum, baby.
-Mike
Certified Mad Doctor and HoP High Priest of Nutella
A buckuht n a hooze! -Valura
The Confusion Squid has many tentacles
E pluribus unum, baby.
The optimist claims that we are living in the best of all possible worlds.
The pessimist fears this is true.
Always make time to play in the snow.
E pluribus unum, baby.
Spoiling Christmas for small children since 2003.
E pluribus unum, baby.
Spoiling Christmas for small children since 2003.
E pluribus unum, baby.
Spoiling Christmas for small children since 2003.
A warrior always returns to the fray. He never does so out of stubbornness, but because he has noticed a change in the weather - Paulo Coelho
quote:Ok so maybe I'm a little thick but Math was always my strong point...
Originally posted by regyt:
There are 3 doors, A, B and C. The probability of the winner being door A (the one you're in front of) is 1/3. The probability of the winner being [door B or door C] is 2/3. If you learn that door C is not the winner, the probability of the winner being [door B or door C] remains 2/3.
Ergo, if you switch doors, your chances of winning go from 1/3 to 2/3.
Let's relight this forum
quote:Because there are three doors and, as you said, each door has a 1/3 chance of being the winner. So door A has 1/3, door B has 1/3, and door C has 1/3. I group them into door A and [door B or door C]. Door A alone is 1/3. [Door B or door C] is 2/3 because the probability of something in that grouping being the winner is equal to the sum of the probabilities of each of the choices in that grouping being the winner.
Originally posted by Custom Bug:
The probability of door A being the winner is 1/3 yeah...so doesn't that means all doors are 1/3? £ doors, 1 chance.....3 x 1 = 3
How can door B & C start with a probability of 2/3?
quote:I think that's the illusion of the puzzle. It looks like it switched from 3 doors to 2, so the probability changed. But really, all 3 doors were there when you made your decision, so the only thing that has changed was your knowledge.
Originally posted by Custom Bug:
It only changes to 2/3 if you know what's behind one door...but if you know what's behind one door you only have two choices left....ergo leaving 1/2 chance each. The open door is no longer part of the equation thus the parts have reduced so the odds must be reduced comparitavily.....
E pluribus unum, baby.
Luv 'n' Lemons
purity :: clarity :: balance
The Confusion Squid has many tentacles
quote:Nothing?
Originally posted by borismcnorris:
A riddle for every one:
What is greater than god and more evil than the devil, rich men want it, poor men have it, and if you eat it you die.
"You can't outrun Death forever.
But you can make the Bastard work for it."
--MAJOR KORGO KORGAR,
"Last of The Lancers"
AFC 32
Educate your self in the Hazards of Fire Breathing STAY SAFE!
E pluribus unum, baby.
The Confusion Squid has many tentacles