|
Answer» Diagram: - A pictorial representation of observed data is called a diagram.
- Although one needs to make use of scale and measurement to draw a diagram, one does not need to have a thorough knowledge of statistics to draw it.
- A diagram is drawn for data having discrete(discontinuous) frequency distribution. For example, the data could be
- No. of children born in a month,
- Price in rupees,
- No. of road accidents, etc.
- Diagram is self-explanatory in nature and can be easily created and understood by anyone.
- A diagram is used by advertising companies to attract customers, by government and other organizations to provide information, etc.
Example of discrete, (discontinuous) data: | Price (In Rs.) | Demand (in units Frequency) | | 1 | 100 | | 2 | 80 | | 5 | 70 | | 7 | 20 | | 10 | 10 |
|
