Frequency Polygon (2 of 2)

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Next section: Histograms

Frequency polygons can be based on the actual frequencies or the relative frequencies. When based on relative frequencies, the percentage of scores instead of the number of scores in each category is plotted.

In a cumulative frequency polygon, the number of scores (or the percentage of scores) up to and including the category in question is plotted. A cumulative frequency polygon is shown below.




Next section: Histograms