Data Grapher
From NCTM "Illuminations". The Basic Data Grapher is an easy-to-use online tool students can use to analyze data with bar graphs, line graphs, pie charts, and pictographs. Multiple rows and columns of data may be entered, and students select which set(s) to display in a graph. They also add appropriate titles and lables, and choose the appropriate type of representation. A second resource, the Advanced Data Grapher (also on Illuminations) includes scatterplots, boxplots and stem and leaf plots.
Allows students to precisely construct graphs for and interpret various types of data.
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