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A couple years ago, I wrote about a study that looked at the effect of a seawater nasal spray on the health of children (see
A short note about election polls, which I've been following somewhat religiously for the last few weeks. Election polls differ in at least four significant ways from actual v...
I don't have a long post for today, but I want to briefly discuss the discussion of a study on Facebook and grades. It was the subject of the Wall Street Journal's Numbers Guy blog last week: