The title is supposed to be funny.
Some data trends and patterns are correlated just by chance, such as the trends in the high fructose corn syrup consumption and the Florida divorce rate. But there are other correlations that, although seeming highly improbable, and you might never have predicted them, are not actually spurious. For finding those, there is Google Correlate. Out of the billions of possible correlations with the first term in these pairs – either across states or over time – each of these was in the top 100. The possibility they are non-spuriousness is reinforced by the fact that each of these lists includes other similar terms in the top 100.
Searches for “am I pregnant” and “ways to get pregnant,” by state (r=.96):
Searches for “divorce lawyer” and “maserati price,” by state (r=.83):
Searches for “discipline children” and “marriage problems,” by state (r=.89):
Searches for “office jobs” and “bob haircut,” by week (r=.88):
Searches for “vasectomy cost” and “how old is johnny depp,” by state (r=.87):
Searches for “man caves” and “penny from big bang theory,” by state (r=.85):
For my whole series of Google-related posts, follow the tag.