>>You have selected door # 1 of three doors on the price is right.
>>Monty Hall shows you door # 2. Behind door # 2 is a got chewing on an old tin can. Behind one of the two door is another got and behind the other is a new boat.
>>
>>Monty Hall asks you if you want to change the door you have chosen. Should you change? And why?
>
>Dan,
>
>Yes you should change. Here's why;
>
>Your first choice of one of three doors had a probability of 1 out of 3 to select the correct door, that is there are 2 out of 3 chances that you chose the wrong door. The probability that your first choice is wrong is double the probability that it was right.


Yep, you're right. The first time I got this question it took a moment to figure out why. You nicely explained..

Walter,