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Collection of Data — Economics STD 11 Commerce — Question

CBSE BoardEnglish MediumSTD 11 CommerceEconomicsCollection of Data4 Marks
Question
Discuss merits and demerits of deliberate sampling.
✓

Answer

Merits
  1. Economical: It is less costly and less time consuming
  2. Proper Representation: It ensures proper representation of the universe when the investigation has full knowledge of the composition of the universe and is free from bias,
  3. Avoid Irrelevant Items: It prevents unnecessary and irrelevant items entering into the sample per chance.
  4. Intensive study: It ensures intensive study of the selected items.
  5. Accurate Results: It gives better results if the investigator is unbiased and has the capacity of keen observation and sound judgment.
Demerits
  1. Personal Bias: There is enough scope for bias or prejudices of the investigate to play and influence the selection.
  2. No equal chance: There is no equal chance for all the items of the universe being included in the sample.
  3. No Degree of Accuracy: There is no possibility of having any idea about the degree of accuracy achieved in the is investigation conducted by this method.
  4. No Possibility of Sample Error: There is no possibility of calculating the sample error the idea of which is based on the mathematical concepts which are no applicable to non-random methods of sampling.
  5. Unsuitable for Large Samples: This method is not suitable for the large samples where the size of both the universe and the sample is considerably mlarge.

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