The harmonic mean of 2, 3, and 6 is: MCQ with Answer and Explanation

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The harmonic mean of 2, 3, and 6 is:

A. 3.6

B. 3

C. 3.27

D. 2.8

Answer: Option B

Solution (By JKSSB Mock Tests)

Reciprocals: 1/2, 1/3, 1/6. Sum = 1. AM of reciprocals = 1/3. HM = 1/(1/3) = 3.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

Classification of data by attributes such as religion or literacy is called:

A. Geographical classification

B. Qualitative classification

C. Quantitative classification

D. Chronological classification

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Correct Answer: Option B

Explanation:
Qualitative classification groups data based on non-numerical characteristics (attributes), enabling analysis of categorical variables like religion, literacy, or occupation.

This question belongs to: Accountancy and Statistics Statistics

Question #2

If Laspeyres index = 125 and Paasche index = 120, Fisher's index is approximately:

A. 121.0

B. 123.0

C. 122.47

D. 122.5

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Correct Answer: Option C

Explanation:
Fisher = √(125 × 120) = √15000 ≈ 122.474.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Which of the following is a characteristic of a good question in a questionnaire?

A. Being double-barreled

B. Being clear and concise

C. Using ambiguous words

D. Asking personal questions first

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Correct Answer: Option B

Explanation:
Clarity and conciseness prevent confusion.

This question belongs to: Accountancy and Statistics Statistics

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