If you throw in 30 sets of numbers, you are bound to find some interesting and statistically significant correlations. It is similar to the data mining legend

If you throw in 30 sets of numbers, you are bound to find some interesting and statistically significant correlations. It is similar to the data mining legend that beer and diapers get bought together. They never told you how many products they analyzed. If it was 5 and they found that correlation, I'd be interested. But it was 500, then the result is pretty useless