**Bar diagrams**, also known as **bar charts** or **bar graphs**, are graphical representations used in business statistics to present numerical data. They consist of rectangular bars of equal width.

• Bar diagrams are sometimes referred to as **one-dimensional diagrams** because they typically represent data along only one axis.

## Types of Bar Diagrams

The various types of bar diagrams commonly used are as follows:

- Simple bar diagrams
- Multiple bar diagrams
- Sub-divided or component bar diagrams
- Percentage bar diagrams

## 1.) Simple bar diagrams

**Simple bar diagrams**, also known as **single-bar graphs**, are the most basic type of bar chart.

• It consists of bars or rectangles of equal width.

• The length of the bars represents the different values of a variable.

**Usage**:- The data relating to profits, sales, production, population for different periods may be represented by simple bar diagram.