Page 76 - DCOM203_DMGT204_QUANTITATIVE_TECHNIQUES_I

Unit 4: Presentation of Data

Cartograms are used to represent data relating to a particular country or to a geographical area. Notes
Such a diagram can be used to represent various types of characteristics like density of population,
yield of a crop, amount of rainfall, etc. The following diagram shows the per capita bank
deposits, credits and the number of persons per bank in different states and union territories of
India in a particular year.

Notes Graphic Presentation
Graphic presentation is another way of pictorial presentation of the data. Graphs are
commonly used for presentation of time series and frequency distributions. In situations
where the diagrams as well as the graphs can be used, the later is preferred because of its
advantages over the former. Graphic presentation of data, like diagrammatic presentation,
also provides a quick and easier way of understanding various trends of data and to
facilitate the process of comparison of two more situations. In addition to this, it can also
be used as a tool of analysis. Graphic methods are sometimes used in place of mathematical
computations to save time and labour, e.g., free hand curves may be fitted in place of
mathematical curve to determine trend values.

Self Assessment

State whether the following statements are true or false:
17. When numerical figures are represented by pictures, we get pictogram.

18. Cartograms are used to represent data relating to a particular country or to a geographical
area.

Case Study ASSOCHAM

ssociated Chamber of Commerce and Industry (ASSOCHAM) is very much
concerned about the employment of youths and their pay rolls in small
Aengineering industries, with special reference to automobile parts manufacturing,
transport for hire, taxis, dealers of new and old vehicles, petrol stations and automobile
repair garages. The chamber has employed you to collect the data regarding employment
and pay role as on 31st March, 2000 and present it suitably through diagram so that it can
be include in the final memorandum to be submitted to Minister for Industries. The data
that you have collected is as follows:
Industry Employment Avg. Earnings per
on 31-3-2000 employee per year
( )
1. Automobile parts manufacturers 4,34,856 56,540
2. Transport for hire 15,26,897 26,348
3. Taxis 11,32,560 42,685
4. Dealers of new and used vehicles 1,09,805 13,684
5. Retail filling stations 22,25,960 15,008
6. Automobile repair garages 12,35,200 12,048

Present the data using a suitable diagram(s) so as to bring out the finer points.

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