How to Draw Histogram?

A histogram is a two dimensional frequency density diagram, which represents the class interval and frequency in the form of a rectangle. It is easy to draw a histogram, by following the simple steps. Mark class interval on X-axis and frequencies on Y-axis. (if the class interval are inclusive for example: 11-15, 16-20, then change them to exclusive form like 10.5-15.5, 15.5-20.5) Then draw the rectangles with the class intervals as bases and the corresponding frequencies as heights. To find more information click here: