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

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Harmonic mean is most appropriate for averaging:

A. Data with extreme outliers

B. Qualitative data

C. Rates and ratios, such as speed or price-earnings ratios

D. Ordinal scale measurements

Answer: Option C

Solution (By JKSSB Mock Tests)

Harmonic mean is suitable for averaging rates or ratios because it gives equal weight to each data point's reciprocal, preventing distortion from high values in rate calculations.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

In a well-designed questionnaire, questions on income should be:

A. In the middle, with no introduction

B. Towards the end, as they are sensitive

C. Randomly placed

D. At the beginning to motivate

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Correct Answer: Option B

Explanation:
Sensitive questions are placed later to build trust and reduce dropout.

This question belongs to: Accountancy and Statistics Statistics

Question #2

In a Poisson distribution, the probability of zero successes is e^{-λ}. If λ=3, this probability is approximately:

A. 0.10

B. 0.20

C. 0.15

D. 0.05

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Correct Answer: Option D

Explanation:
e^{-3} ≈ 0.0498 ≈ 0.05.

This question belongs to: Accountancy and Statistics Statistics

Question #3

The mode of the data: 2, 4, 4, 6, 6, 6, 8, 8 is:

A. 8

B. 4

C. No mode

D. 6

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Correct Answer: Option D

Explanation:
6 appears three times, more than any other value.

This question belongs to: Accountancy and Statistics Statistics

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