The Monty Hall problem
Pick one of three cards; one is the prize. The host, who knows where the prize is, turns over a losing card. Then you choose: stick with your card, or switch to the other one?
Predict first. Then play 20 rounds always sticking and 20 rounds always switching.
1. Your prediction
Monty Hall · before you play
2. Play
Make your prediction first.
Always stick0/0won · 0%0 of 20 rounds
Always switch0/0won · 0%0 of 20 rounds
3. More evidence
Finish 20 rounds of each first. Then the computer can play 1,000 more of each for you.
Monty Hall · after you play