Monday, April 25, 2011

Stem and Leaf Plot Map

Stem and Leaf Plot Map

Stem and leaf plot maps are valuable in that they display numerical data in such a way that one can easily determine the mean, median, and mode in a set of data with just a glance. By organizing data by place value, one can easily determine the 'ones' values from the 'tens and more' values. The example plot below charts the number of students enrolled in a class over the course of years. The least number of students being 22, the median number being 57, and the most being 67.

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