Z-scores and Empirical Rule Notes

Empirical Rule says that … 68%. of the data in a normally distributed data set is within . 1 standard deviation. 95%. of the data in a normally distributed data set is within . 2 standard deviations. 99.7%. of the data in a normally distributed data set is within . 3 standard deviations. Types of questions involving the Empirical Rule: 1. ................
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