Which measure of central tendency is most suitable for averaging rates, ratios, and speeds over equal distances? MCQ with Answer and Explanation

Question
Which measure of central tendency is most suitable for averaging rates, ratios, and speeds over equal distances?
A. Arithmetic Mean
B. Geometric Mean
C. Weighted Mean
D. Harmonic Mean
Answer: Option D
Solution (By JKSSB Mock Tests)
Harmonic mean is mathematically appropriate for averaging rates and speeds when the distance is constant.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
Which measure of central tendency can be used for qualitative data?
A. Harmonic mean
B. Arithmetic mean
C. Median
D. Mode
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Correct Answer: Option D

Explanation:
Mode identifies the most frequent category, so it can be used for nominal qualitative data.
This question belongs to: Accountancy and Statistics Statistics
Question #2
Given P(A)=0.5, P(B)=0.3, P(A∩B)=0.1. Are A and B independent?
A. No, because 0.1 ≠ 0.15
B. Yes, because P(A∩B)=P(A)P(B)
C. Yes, because they are mutually exclusive
D. Cannot determine
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Correct Answer: Option A

Explanation:
P(A)P(B)=0.5×0.3=0.15 ≠ 0.1, so not independent.
This question belongs to: Accountancy and Statistics Statistics
Question #3
Net Reproduction Rate (NRR) incorporates which additional factor compared to GRR?
A. Male fertility
B. Female mortality before reproductive age
C. Migration rates
D. Economic development index
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Correct Answer: Option B

Explanation:
NRR adjusts GRR by multiplying age-specific fertility rates by the probability of surviving to each age, accounting for female deaths before childbearing years to assess true generational replacement.
This question belongs to: Accountancy and Statistics Statistics
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