Life expectancy at birth is the: MCQ with Answer and Explanation

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Life expectancy at birth is the:

A. Maximum age a person can live

B. Number of years a newborn is expected to live under current mortality patterns

C. Average age at death of a cohort

D. Median age of the population

Answer: Option B

Solution (By JKSSB Mock Tests)

Life expectancy at birth summarizes the age-specific mortality rates in a given period into a single synthetic measure.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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If the crude birth rate of a country is 25 and crude death rate is 10, and net migration rate is -2 per 1000, the growth rate is:

A. 37 per 1000

B. 17 per 1000

C. 13 per 1000

D. 15 per 1000

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Correct Answer: Option C

Explanation:
Growth rate = 25 - 10 + (-2) = 13 per 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Neonatal mortality rate is a subset of:

A. Infant mortality rate

B. Maternal mortality rate

C. Perinatal mortality rate only

D. Crude death rate

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Correct Answer: Option A

Explanation:
Neonatal deaths (0-28 days) are part of infant deaths (0-1 year).

This question belongs to: Accountancy and Statistics Statistics

Question #3

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In the construction of Index Numbers, Geometric Mean is considered better than Arithmetic Mean because:

A. It fails the time reversal test

B. It gives equal weight to equal percentage changes

C. It ignores zero values

D. It is easier to calculate

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Correct Answer: Option B

Explanation:
GM balances out massive price swings better than AM because it treats a doubling (200%) and a halving (50%) equally.

This question belongs to: Accountancy and Statistics Statistics

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