Question: About of the area is between z 2

About % of the area is between z = -2 and z = 2 (or within 2 standard deviations of the mean). Find the indicated area under the curve of the standard normal distribution, then convert it to a percentage and fill in the blank. The results form the basis for the range rule of thumb and the empirical rule introduced in Section 3-3.

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  • CreatedMay 03, 2015
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