Simple Bar Chart

A simple bar chart is used to represent data involving only one variable classified on a spatial, quantitative or temporal basis. In a simple bar chart, we make bars of equal width but variable length, i.e. the magnitude of a quantity is represented by the height or length of the bars. The following steps are used to draw a simple bar diagram:

  • Draw two perpendicular lines, one horizontally and the other vertically, at an appropriate place on the paper.
  • Take the basis of classification along the horizontal line (X - axis) and the observed variable along the vertical line (Y - axis), or vice versa.
  • Mark signs of equal breadth for each class and leave equal or not less than half a breadth between two classes.
  • Finally mark the values of the given variable to prepare required bars.

 

Example:

Draw simple bar diagram to represent the profits of a bank for 5 years.

Years
1989
1990
1991
1992
1993
Profits (million $$)
10
12
18
25
42

 

A simple bar chart showing the profits of a bank for 5 years:

Simple Bar Chart

Simple Bar Chart