Statistical Education Resource Kit

Measures of Variation

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Table of Contents

Measures of Variation 

Sample Range 

Sample Variance 

Sample Standard Deviation 

PPT Slide 

Sample Interquartile Range 

Measures of Variation - Some Comments 

Boxplot - a 5 number summary 

Boxplot Example - Table 4, p. 30 

Creating a Boxplot 

PPT Slide 

Boxplot Interpretation

 Author: Herb McGrath 

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This web page was submitted by Herb McGrath: mcgrath@stat.psu.edu