Skip to content# Monty Hall Problem

**Classifications**

Author(s): David Klein, Spencer Bowen

A prize is hidden behind one of three doors. You choose the door where you think the prize is hidden. But before the door is opened, one of the other 2 remaining doors is opened to reveal no prize. You can choose to keep the door you chose earlier or switch to the other remaining door. What should you do?

Topics covered: Mathematical Games, Probability and Statistics

Supporting materials: Facilitator Guides, Handouts

Associated Math Circles: San Francisco Math Circle