I got a paltry 6. Though not trying to excuse my poor result, I think that several of them could be classed as "trick" questions.
For example this one:
If you were to discover that your great-great-grandmother married at the age of 23 in 1850, would this be…
Considerably younger than average?
A little younger than average?
A little older than average?
Considerably older than average?
I answered C thinking that girls married around 21/22, but was incorrect due to the fact that in this period in time, the average age for marriage was 24. I know it's just a fun quiz, but that really is nitpicking.
