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  • michael Johnson thinks this is interesting:

In the interest of accuracy (the point of this hack, after all), I should point out that the standard error of the estimate formula given earlier isn't quite correct. However, it does provide almost the same result as this more complex, but correct, equation:


Cover of Statistics Hacks


Why is the equation exactly the same as the one above, yet it is described as more complex? I suspect a typographical error.