With Both Hands

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Foolishness

A Cautionary Tale

I was engaged in a discussion over at the PhysicsForums regarding the relative merits of academic versus industrial jobs for science and engineering types, and one of the regular members posted a link to an article in the Pittsburgh Post-Gazette about the rise and fall of Westinghouse. It was a

The Dangers of Correlation and the Necessity of Scatterplots

The Dangers of Correlation and the Necessity of Scatterplots

After my previous post on IQ and Height, I thought it would be good to revisit the subjects of scatterplots and correlation. A scatterplot is often an excellent first step in any data analysis. You can learn a lot from a scatterplot, because humans are good at pattern recognition. A