Let's keep this rolling, Keith. You are on a gameshow and the host shows you three doors. Behind one door is a suitcase with $1 million in it, and behind the other two doors are sacks of coal. The host tells you to choose a door, and that the prize behind that door will be yours to keep. You point to one of the three doors. The host says, "Before we open the door you pointed to, I am going to open one of the other doors." He points to one of the other doors, and it swings open, revealing a sack of coal behind it. "Now I will give you a choice," the host tells you. "You can either stick with the door you originally chose, or you can choose to switch to the other unopened door." Should you switch doors, stick with your original choice, or does it not matter?
Stick with original choice if I remember correctly, has to do with the fact that the probability on the original door changes when another choice is eliminated.
Although I may be completely wrong and it is the other way round
Switch doors. In the first case, you have only a 33% chance of being right. Once the other door is given as a choice, you have a 50% chance of your choice being correct.