Question:

Which of the following statements about demography are correct?
I. Demography is the systematic study of population.
II. Census is conducted every five years in India.
III. Demography studies birth rate, death rate, and migration.
IV. Age structure and sex ratio are important demographic indicators
Choose the correct answer:

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Pay close attention to details in statements, especially numerical facts (like frequencies of events). For demography questions, remember its core components: population size, structure (age, sex), and changes (births, deaths, migration).
Updated On: May 11, 2026
  • I and II only
  • I, III and IV only
  • II and III only
  • I, II, III and IV
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The Correct Option is B

Solution and Explanation


Step 1: Understanding Demography:

Demography is the statistical study of populations, especially human beings. It encompasses the study of the size, structure, and distribution of these populations, and how populations change over time due to births, deaths, migration, and aging.

Step 2: Evaluating Each Statement:

I. Demography is the systematic study of population. This statement is correct. This is the fundamental definition of demography.
II. Census is conducted every five years in India. This statement is incorrect. In India, the census is conducted every ten years, not five years. The last census was in 2011, and the next one is delayed.
III. Demography studies birth rate, death rate, and migration. This statement is correct. These are core components of demographic analysis, often referred to as vital statistics or demographic processes.
IV. Age structure and sex ratio are important demographic indicators. This statement is correct. Age and sex are fundamental characteristics of a population that influence its dynamics and are crucial for understanding social and economic planning.

Step 3: Identifying Correct Statements:

Statements I, III, and IV are correct. Statement II is incorrect.

Step 4: Selecting the Correct Option:

Based on the correct statements, the answer is I, III, and IV only, which corresponds to Option (2).
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