Females Rating Males on OKCupid

The OKCupid dating site provides lots of very interesting data. Figure 2.61 shows a scatterplot of the age of males that females find most attractive, based on the age of the females doing the rating. The Xvariable is the age of heterosexual females using the OKCupid site.

For each age, the Y-variable gives the age of males that are rated most attractive by women at that age. So, for example, the dot that is farthest left shows that 20-year-old women find men who are age 23 the most attractive. The Y = X line is also shown on the graph, for reference. (The comparable graph for males is given in Exercise 2.193.)

(a) At what age(s) do women find men the same age as themselves the most attractive?

(b) What age men do women in their early 20s find the most attractive: younger men, older men, or men the same age as themselves?

(c) What age men do women in their 40s find the most attractive: younger men, older men, or men the same age as themselves?

(d) Which of the following is likely to be closest to the correlation between these two variables?

0.9, 0, −0.9