The 68-95-99.7 Rule

The figure below will help you to visualize the 68-95-99.7 Rule (or the Empirical Rule) for a Normal Distribution. The histogram displays 100 data values from a population N(0,1). The histogram is centered on the mean of the data. The width of each bin is the standard deviation of the data. Therefore, the bin boundaries are z-scores. The numbers on each bin is the number of data values in the bin. Since there are 100 data values, these numbers are percents.

 

Steve Phelps

 
Resource Type
Activity
Tags
empirical  normal  rule 
Target Group (Age)
14 – 19+
Language
English
 
 
 
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