Life expectancy at birth is a summary measure of: MCQ with Answer and Explanation

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Life expectancy at birth is a summary measure of:

A. Mortality

B. Fertility

C. Nuptiality

D. Migration

Answer: Option A

Solution (By JKSSB Mock Tests)

Life expectancy is derived from age-specific mortality rates and reflects overall mortality conditions.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

The dependency ratio in India has been declining primarily due to:

A. Emigration

B. Increasing old age population

C. Increasing mortality

D. Declining fertility

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Correct Answer: Option D

Explanation:
Falling birth rates reduce the proportion of children (0-14), lowering the dependency ratio, at least in the short-medium term.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Assertion (A): Fisher's ideal index satisfies both time reversal and factor reversal tests. Reason (R): Fisher's index is the geometric mean of Laspeyres and Paasche indices. Choose the correct option:

A. A is true, R is false

B. Both A and R are true, and R is the correct explanation of A

C. A is false, R is true

D. Both A and R are true, but R is not the correct explanation of A

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Correct Answer: Option B

Explanation:
Fisher's index indeed satisfies both tests, and the formula (geometric mean) is the reason it meets these tests.

This question belongs to: Accountancy and Statistics Statistics

Question #3

In the context of data collection, what is the fundamental difference between a schedule and a questionnaire?

A. A schedule contains more questions than a questionnaire.

B. There is no difference; they are synonymous.

C. A questionnaire is always sent by mail, whereas a schedule is emailed.

D. A schedule is filled by the enumerator, while a questionnaire is filled by the respondent.

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Correct Answer: Option D

Explanation:
Schedules require trained enumerators to ask questions and record answers, reducing non-response rates compared to questionnaires.

This question belongs to: Accountancy and Statistics Statistics

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