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Posts Tagged ‘correlation’

Scott Aaronson has a nice post in which he plots political freedom and economic freedom on a chart and concludes that while the two are definitely correlated, the correlation seems to disappear near the high-freedom areas of the chart. In fact he hypothesises there might be a ‘Pareto curve’ fitting this negative correlation between the two freedoms near the top of the scale.

Unfortunately, as I point out in a comment on his blog, his data is suspect, especially near the top end of the scale that is relevant to the Pareto curve discussion. For instance, Canada and Sweden lie near the top of the political freedom scale according to the Freedom House survey that he uses. In particular, they both have perfect scores in “freedom of expression and belief”. Of course, this is deeply flawed as both countries have insidious hate speech laws that stifle speech, especially those belonging to the far right.

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Caltech student Virgil Griffith downloaded, using facebook, the ten most popular books in each college, and correlated it with the average SAT score of the students in that college. The results are funny and interesting. Of course, it is not a scientific survey and not meant to be taken too seriously. 

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