Definición Histogram

The histogram, a special form of the bar graph, is used to depict frequency distributions of statistical data. Variables are represented by the x-axis of the histogram while the y-axis represents the frequency. The frequency of a measured value is represented by a bar-shaped area above the measured value – either relatively (in percent) or absolute.

Preferably, a histogram depicts variables representing classes of equal size, meaning that, for example, income would be represented in consistent Dollar ranges.