Which of the following is a disadvantage of the mailed questionnaire method for primary data collection? MCQ with Answer and Explanation

Which of the following is a disadvantage of the mailed questionnaire method for primary data collection?
A. Limited geographical coverage
B. Low response rate and potential non-response bias
C. High cost per respondent
D. Requires highly trained enumerators
Answer: Option B
Solution (By JKExamLibrary)
Mailed questionnaires often suffer from low return rates, and respondents who reply may differ systematically from non-respondents, introducing bias that is difficult to assess or correct.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error
The current base year of WPI (wholesale price index) in India is:
A. 2004-05
B. 2012
C. 2011-12
D. 2015-16

Correct Answer: Option C


Explanation:
The revised WPI series uses 2011-12 as base.

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Question #2 Report Error
The simple aggregative price index is:
A. √(L×P) × 100
B. Σp₁ / Σp₀ × 100
C. Σp₁q₁ / Σp₀q₁ × 100
D. Σp₁q₀ / Σp₀q₀ × 100

Correct Answer: Option B


Explanation:
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The Paasche price index tends to ______ the true increase in prices if consumers substitute away from goods that have become more expensive.
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Correct Answer: Option C


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Paasche uses current period quantities; substitution away from expensive items reduces their weight, leading to understatement.

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