The weighted harmonic mean of values 2 and 3 with weights 3 and 2 respectively is: MCQ with Answer and Explanation

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The weighted harmonic mean of values 2 and 3 with weights 3 and 2 respectively is:

A. 2.4

B. 2.5

C. 2.31

D. 2.8

Answer: Option C

Solution (By JKSSB Mock Tests)

Weighted HM = (Σw) / Σ(w/x) = 5 / (3/2 + 2/3) = 5 / (1.5 + 0.6667) = 5/2.1667 ≈ 2.3077.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1

Which of the following statements is true?

A. Fisher's index is the arithmetic mean of Laspeyres and Paasche

B. Fisher's index is the median of Laspeyres and Paasche

C. Fisher's index is the harmonic mean of Laspeyres and Paasche

D. Fisher's index is the geometric mean of Laspeyres and Paasche

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Correct Answer: Option D

Explanation:
Fisher's ideal index = √(Laspeyres × Paasche).

This question belongs to: Accountancy and Statistics Statistics

Question #2

Data classified based on geographical areas such as countries, states, or cities is known as:

A. Quantitative classification

B. Qualitative classification

C. Spatial classification

D. Chronological classification

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Correct Answer: Option C

Explanation:
Spatial or geographical classification groups data according to physical locations or regions.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Crude Birth Rate (CBR) is defined as:

A. Number of live births per 1,000 mid-year population

B. Number of births per 100 women of childbearing age

C. Total births divided by total deaths

D. Number of births per 1,000 married women

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Correct Answer: Option A

Explanation:
CBR = (Number of live births in a year / Mid-year population) × 1,000. It is a simple, widely used measure of fertility, though it does not account for age structure.

This question belongs to: Accountancy and Statistics Statistics

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