Utility of the study of diagrams and graphs

Diagrams and graphs are extremely useful due to the following reasons:

(i) Information presented though diagrams and graphs can be understood easily just in a bird’s eye view.

(ii) These are appealing and fascinating to the eyes; Scholars take greater interest in presenting data through these devices.

(iii) Diagrams and graphs produce a greater lasting impression on the mind of the readers than the figures presented in a table.

(iv) They facilitate ready comparison of data over time and space. Graphs study economic relationship between two variables.

However, graphic and diagrammatic presentation have some limitations. For example, unlike a table a diagram or a graph does not show the exact value of a variable. Further, a limited set of facts can be presented through such devices like diagram and graph.