![](https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEh1a7kp0iwUwaWX9EGltf3I8YbZsAp4aMhE8RYYbDLn-MTqz9MiWkuz9m317vaM8m3-GiLGo9FnP9ZRqcG_H-suCkYlt-knuQpI3Ybt1tPDuZWRppOvNTtOS8vlQ7Yta8duDsaGA92OdP-G/s200/histogram.gif)
In statistics, a Histogram is a graphical display of tabulated frequencies, shown as bars. It shows what proportion of cases fall into each of several categories.
A Histogram differs from a Bar Chart in that it is the area of the bar that denotes the value, not the height as in bar charts, a crucial distinction when the categories are not of uniform width.
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