Math | Simpson's Paradox | WSJ

Is unemployment now higher or lower than in the early recession of the 1980's. Yes! No! Both! Check this article for the implications of data aggregation in statistical analysis. So, if you're looking for a clever way to dispute a statistical analysis you dislike, you can declare "Simpson's Paradox" and walk away! Or just follow the path of the screaming talk show hosts ... if the facts get in the way of your beliefs, change the facts!