Stem and leaf plots take a collection of arbitrary numbers and aid in organizing them so they are ready to be graphed into a different form, such as a histogram or a box plot. This is started by breaking the graph down in “tens” and “digits.” The numbers on the left of the “stem” are the “ten leaves” and represent a value in the ten place. The numbers on the right of the “stem” represent the “digit leaves” and represent a value between 0 and 9. This aids in organization and makes it much easier to understand and evaluate data. Here we can see that the test scores from a recent math test were less than perfect as many students received a grade between 10 and 19 percent.
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