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Cartoon: No tables needed when z = 2

A cartoon to to help students remember that about 95% of data in a symmetric histogram lies within 2 standard deviations of the mean. Cartoon by John Landers ( based on an idea from Dennis Pearl (The Ohio State University). Free to use in the classroom and on course web sites.
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Date Of Record Creation 2010-03-23 14:27:41
Date Of Record Release 2010-03-23 14:27:41
Date Last Modified 2010-03-23 14:27:41
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Author Name John Landers
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