http://mainland.cctt.org/mathsummer/josephbond/stemandplots/stem-and-leaf_std.htm
Here is an example of a steam and leaf plot, which is a way to show quantitative or statistical date in a graphical format. It typically has two columns separated by a vertical line; the left column contains the steams and the right column contains the leaves. This one is showing infant mortality rates in West Africa.
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