Life expectancy at birth is calculated from: MCQ with Answer and Explanation

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Life expectancy at birth is calculated from:

A. Census data only

B. Crude birth rate

C. Total fertility rate

D. Age-specific death rates through a life table

Answer: Option D

Solution (By JKExamLibrary)

Life tables use age-specific mortality rates to compute life expectancy.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

The sex ratio in India is defined as:

A. Males per 1000 population

B. Males per 1000 females

C. Females per 1000 males

D. Females per 1000 population

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Correct Answer: Option C

Explanation:
Sex ratio = (number of females / number of males) × 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

For a set of values, the sum of squared deviations is minimum when taken from:

A. Mode

B. Arithmetic mean

C. Median

D. Geometric mean

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Correct Answer: Option B

Explanation:
The arithmetic mean minimizes the sum of squared deviations.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Assertion (A): The arithmetic mean is not a robust measure of central tendency. Reason (R): It is highly influenced by outliers. Choose the correct option:

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

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

C. A is true, R is false

D. A is false, R is true

View Answer & Solution Discuss

Correct Answer: Option A

Explanation:
The mean is sensitive to extreme values, making it non-robust. R explains why.

This question belongs to: Accountancy and Statistics Statistics

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