The harmonic mean is most appropriate for averaging: MCQ with Answer and Explanation

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The harmonic mean is most appropriate for averaging:

A. Speeds when the distance is constant

B. Income

C. Ratings

D. Growth rates

Answer: Option A

Solution (By JKSSB Mock Tests)

Harmonic mean is used for rates where the numerator is constant, such as average speed for fixed distances.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

Which of the following statements about the Census of India is correct?

A. It is conducted every 5 years.

B. It uses the de jure method of enumeration.

C. It does not collect literacy data.

D. It covers only the rural population.

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Correct Answer: Option B

Explanation:
Indian census uses the de jure (usual residence) method. It is decennial, covers whole country, collects literacy.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Which of the following is not a vital event?

A. Death

B. Graduation

C. Marriage

D. Birth

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Correct Answer: Option B

Explanation:
Vital events refer to births, deaths, marriages, and divorces.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Life tables are primarily used to calculate:

A. Migration rates

B. Life expectancy and survival probabilities

C. Economic dependency ratios

D. Fertility rates

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Correct Answer: Option B

Explanation:
Life tables summarize age-specific mortality to compute life expectancy at various ages, probability of survival, and other demographic measures essential for actuarial and population studies.

This question belongs to: Accountancy and Statistics Statistics

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