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Collection of Data — Economics STD 11 Commerce — Question

CBSE BoardEnglish MediumSTD 11 CommerceEconomicsCollection of Data6 Marks
Question
Differentiate between census survey and sample survey.
✓

Answer

Differences between census survey and sample survey are:
S. No.
Basis
Census Survey
Sample Survey
1.
Coverage
The whole universe is taken for collection of data in census survey.
Only representative sample is taken for collection of data in sample survey.
2.
Suitability
This method is suitable when the area under investigation is relatively small.
This method is suitable when the area under investigation is large.
3.
Accuracy
Since, all items are studied under census survey, highest degree of accuracy is possible.
Since only representative samples are studied under sample survey, it is less accurate.
4.
Time
Census survey is very time consuming as all items are studied.
Sample survey is less time consuming as only samples are studied.
5.
Nature of Items
Census survey is suitable when items in the universe have diverse characteristics.
Sample survey is suitable when items in the universe are homogeneous.

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