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cumulative frequency polygon


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A diagram representing grouped numerical data in which cumulative frequency is plotted against upper class boundary, and the resulting points are joined by straight line segments to form a polygon. The polygon starts at the point on the x-axis corresponding to the lower class boundary of the lowest class. See also ogive; step diagram.

Cumulative frequency polygon. The diagram refers to the distances between the breeding colony and the point of recovery for a group of razorbills. The outline is typical, with slow increases at the left and right ends of the polygon indicating the scarcity of the corresponding values.

Subjects: Probability and Statistics.


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