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

Life expectancy at birth is the:
A. Median age of the population
B. Maximum age a person can live
C. Average age at death of a cohort
D. Number of years a newborn is expected to live under current mortality patterns
Answer: Option D
Solution (By JKSSB Mock Tests)
Life expectancy at birth summarizes the age-specific mortality rates in a given period into a single synthetic measure.

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Practice More Statistics Questions

Question #1
A mode can be located graphically with the help of a:
A. Frequency Curve
B. Bar chart
C. Ogive
D. Histogram

Correct Answer: Option D


Explanation:
By drawing a histogram, the mode is found by joining the top corners of the highest rectangle to the adjacent rectangles.

This question belongs to: Accountancy and Statistics Statistics
Question #2
For a set of discrete values, which measure of central tendency minimizes the sum of squared deviations?
A. Harmonic Mean
B. Mode
C. Median
D. Arithmetic Mean

Correct Answer: Option D


Explanation:
A fundamental property of the arithmetic mean is that the sum of the squares of deviations from it is always minimum.

This question belongs to: Accountancy and Statistics Statistics
Question #3
Life expectancy at birth is calculated from a:
A. Census
B. Fertility survey
C. Sample survey
D. Life table

Correct Answer: Option D


Explanation:
Life expectancy is derived from a life table, which summarizes mortality rates at each age.

This question belongs to: Accountancy and Statistics Statistics