Xkcd statistics dating
Cueball is taking a scientific approach to creating a valentine card.
I'll try to include comics that are actually enjoyable and not just incidentally related to statistics.
These prove useful for lecture slides, homework assignments, exams, etc.
While I certainly prefer comics under open content licenses, I'll post any comics here for which I can obtain permission to do so.
The data is given as the number of singles within an age category bounded by lower and upper ages.
As an example, there are 7993 thousand singles of both sexes between the ages of 18 and 19.