Events and Probability Spaces · Process Tree
Lesson 9
Problem. The host brings three identical closed boxes, one of which contains a prize, while the other two are empty. The participant selects one of the boxes, after which the host (who knows exactly where the prize is) opens an empty box among the two remaining boxes and offers the participant to think again and confirm or change their choice. What is more beneficial for the participant, to change their choice or not?
5 points
It is more beneficial to change the choice.
It is more beneficial not to change.
It does not matter whether to change or not.