A population pyramid with a narrow base and wide top indicates: MCQ with Answer and Explanation

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A population pyramid with a narrow base and wide top indicates:

A. High fertility, low mortality

B. High infant mortality

C. High birth rate, high death rate

D. Low birth rate, low death rate, aging population

Answer: Option D

Solution (By JKSSB Mock Tests)

Narrow base means fewer young people; wide top means many elderly, typical of developed countries.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

The concept of 'population momentum' refers to:

A. Net migration

B. Tendency of population to grow despite declining fertility due to large reproductive-age population

C. Urbanization rate

D. Increase in life expectancy

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Correct Answer: Option B

Explanation:
Population momentum is the built-in growth potential resulting from a young age structure, even if fertility drops to replacement level.

This question belongs to: Accountancy and Statistics Statistics

Question #2

If a dataset has a mean of 100 and a coefficient of variation of 20%, the standard deviation is:

A. 30

B. 40

C. 10

D. 20

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Correct Answer: Option D

Explanation:
Coefficient of variation (CV) = (SD / Mean) × 100. So 20 = (SD / 100) × 100 → SD = 20. CV standardizes dispersion relative to the mean.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Which of the following is a principle of questionnaire design?

A. Use ambiguous terms

B. Use double negatives

C. Maintain a logical flow from general to specific

D. Ask personal questions at the beginning

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Correct Answer: Option C

Explanation:
Logical sequencing improves response quality and reduces dropout.

This question belongs to: Accountancy and Statistics Statistics

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