There are many interesting variations of this, some that give the opposite behavior, if you ever want to trick someone who already knows the Monty Hall problem.

There are many interesting variations of this, some that give the opposite behavior, if you ever want to trick someone who already knows the Monty Hall problem. https://www.youtube.com/watch?v=AB-FA75Tm1I https://www.youtube.com/watch?v=AB-FA75Tm1I