In a sample survey, sampling error mainly arises because:

CA Foundation · Quantitative Aptitude · PYQS · May 2026
In a sample survey, sampling error mainly arises because:
(A) A. Enumerators record some responses incorrectly
(B) B. A part of the selected sample does not respond
(C) C. Only a subset of the population is observed instead of a complete census
(D) D. Some questions in the schedule are ambiguously worded

Suggested Answer and Working Notes:

Correct Answer: Option (C)

C. Only a subset of the population is observed instead of a complete census

Topics: Part-C: Statistics

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