Reference Notes
Unit: Statistics | Economics
Diagrammatic and Graphical
Representation of Data
Management: Class 11

Differences Between Diagrams and Graphs
The following are the major distinctions between diagrams and graphs.

• Diagrams are used only for comparison and give mostly qualitative analysis like higher or lower whereas a graph is used mainly to present qualitative data.
• Diagrams show the approximated result whereas graphic presentation is more precise and accurate and drawn only inn graph papers for accuracy.
• Graphical presentation is done in two dimensions and they present mathematical relationships between variables, whereas diagrams might be uni-dimensional or multi- dimensional.
• Diagrammatic presentation looks attractive and can be understood even by illiterate people, but graphic presentation of data is relatively complex and can be used to further mathematical treatment.
• Construction of graphs is easier as compared to the construction of diagrams, because graphs take concrete forms but drawing diagrams is like an art.
• The presentation of frequency distribution is not used in diagrams, but these can be easily presented in graphic presentation.