A census is typically conducted at what interval in most countries?
A. Every 5 years
B. Every 20 years
C. Every 10 years
D. Every year
Answer: Option C
Solution (By JKExamLibrary)
Most nations, including India and the USA, conduct a full population census decennially (every 10 years) to balance comprehensiveness with cost and logistical feasibility.
Explanation:
Fixed base index selects one period as the base (index=100) and expresses all other periods relative to it, enabling consistent long-term trend analysis without base drift.
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