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

Question Report Error

The harmonic mean of 2 and 6 is:

A. 3

B. 2.4

C. 3.6

D. 4

Answer: Option A

Solution (By JKExamLibrary)

HM = 2 / (1/2 + 1/6) = 2 / (4/6) = 3.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

An ogive is a graph of:

A. Frequency against lower limits

B. Frequency vs class midpoints

C. Cumulative frequency against upper class boundaries

D. Cumulative frequency against lower class boundaries

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Correct Answer: Option C

Explanation:
A 'less than' ogive plots cumulative frequency against the upper class boundaries.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

If a variable can take only integer values, the data is:

A. Ordinal

B. Continuous

C. Discrete

D. Qualitative

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Correct Answer: Option C

Explanation:
Integer values are discrete.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

The crude birth rate does not account for:

A. Age and sex composition

B. Mid-year population

C. Number of live births

D. Total population

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Correct Answer: Option A

Explanation:
CBR uses total population as denominator, ignoring the proportion of women of childbearing age.

This question belongs to: Accountancy and Statistics Statistics

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