Does the empirical rule (aka 68-95-99.7 rule) only apply to normal distribution or is it true for skewed data as well?

My guess is yes, because the standard deviation is differnt between normally distributed data and skewed data.

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- Jun 1st 2010, 08:03 PMsuperdudewhen is the empricial rule true?[RESOLVED]
Does the empirical rule (aka 68-95-99.7 rule) only apply to normal distribution or is it true for skewed data as well?

My guess is yes, because the standard deviation is differnt between normally distributed data and skewed data. - Jun 1st 2010, 08:32 PMCaptainBlack