[jackhigh]

This is easy... (probablility speaking) you always switch! Here's a simple explanation...

Out of 3 doors you can pick the car only once but you can pick a goat twice. 1 chance in 3 to win if you don't switch.
If you originally pick the car and switch, you lose.
But if you originally picked goat #1 and switch, you win. If you originally picked goat #2 and switch you win.
Thus if you switch you can win twice and lose once. If you don't switch, you can only win once and lose twice.
So always switch...unless you like goats! [img]/images/graemlins/smirk.gif[/img]