I've only ever used the SF-3 myself. Randall Munroe studied physics, so I'm impressed with his familiarity with social science datasets.
Fun fact I did not know until today - Munroe graduated from Christopher Newport University the same year I graduated from William and Mary. CNU is just a few miles down the road from W&M. My cousin went there, and Kate did a lot of joint stuff with the school's sister chapter of her sorority (Phi Mu).
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Fun Fact: Every XKCD cartoon has a mouseover text. This one says:
ReplyDelete"Suckville is considered by the Census Bureau to be part of the Detroit metropolitan statistical area, despite not being located anywhere near Detroit."
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I met Randall once, nice guy.
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