A histogram graphically displays frequencies that have been tabulated, the results being displayed as bars. These bars describe what proportion of cases fall into each of several categories. A histogram differs from a bar graph in that the area of the bar denotes the value, not the height. This histogram describes test results for a group of students; the proportion of students scoring different grades is readily apparent.Wednesday, October 1, 2008
Histogram
A histogram graphically displays frequencies that have been tabulated, the results being displayed as bars. These bars describe what proportion of cases fall into each of several categories. A histogram differs from a bar graph in that the area of the bar denotes the value, not the height. This histogram describes test results for a group of students; the proportion of students scoring different grades is readily apparent.
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