richardhutnik on 02 December 2010
Odds can change based upon futher information becoming revealed. For those who get confused by the fact the odds can apparently change, consider this:
Let's say there were 100 doors to pick. One has the prize, and you pick one. Then they reveal all the other doors not picked but one. Do you switch to the other unopened door? Think of it that way and it should be clear the answer is yes. That last door has a 99% chance of being the one door with the prize behind it, while your initial pick has a 1% chance. The odds did change, based upon further information, for the other door not picked. The one you picked does remain constant.
