Histogram

A histogram is a graphical representation of grouped continuous data. It consists of adjacent rectangular bars where the area (or the height, if class widths are uniform) of each bar is proportional to the frequency of the data in that class interval.

Example

When visualizing the heights of students, a histogram can display the number of students (frequency on the y-axis) falling into height ranges like $150 \le h < 160\text{ cm}$ (class intervals on the x-axis).

Histogram

Example

See Also