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. Ratings

C. Income

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

Three dice are rolled. The probability of getting a sum of 5 is:

A. 5/216

B. 1/36

C. 10/216

D. 15/216

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Correct Answer: Option B

Explanation:
Combinations: (1,1,3) and (1,2,2) each with 3 permutations, total 6 favorable. 6/216 = 1/36.

This question belongs to: Accountancy and Statistics Statistics

Question #2

Factor reversal test requires that the product of a price index and its corresponding quantity index equals:

A. Current year value

B. 1

C. Value index

D. Base year value

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Correct Answer: Option C

Explanation:
The product should equal the value ratio Σp₁q₁/Σp₀q₀, i.e., the value index.

This question belongs to: Accountancy and Statistics Statistics

Question #3

According to 2011 Census, the literacy rate in India (population aged 7 and above) is:

A. 77.7%

B. 82.14%

C. 64.8%

D. 74.04%

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Correct Answer: Option D

Explanation:
The overall literacy rate was 74.04%; male 82.14%, female 65.46%.

This question belongs to: Accountancy and Statistics Statistics

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