Thank you for participating this study. This experiment will last no longer than one hour. Please make sure you can stay for the entire
study. If you cannot stay for the entire study, please notify the experimenter immediately.
There should be a fair die and a plastic cup in front of you. If you cannot find them, please notify
the experimenter.
You can test the fair die to check its fairness. A fair die means each number has an equal chance to face up.
If you have no other questions, you may click the next button below to start.