By the way, this quiz was not the point of the
paper I got it from. The actual point was much more interesting.
The quiz was given so the correctness of those answers could be correlated with the answers to questions about risk-aversion and discount rates.
Would you rather have a) $1000 for sure, or b) a 90% chance of $5000?
The people who got 3 out of 3 correct on the quiz were much more likely to take the 90% chance of $5000 than were the people who got 0 out of 3 correct on the quiz.
In general, the paper concludes that intelligence of the sort required to do well on the quiz is positively correlated with a willingness to take +EV gambles, and also with lower future discount rates (e.g., people who aced the quiz were more likely to take $140 next year instead of $100 now).
That's kind of interesting.