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

Geometric mean is most appropriate for averaging:
A. Data with negative values
B. Growth rates or ratios
C. Categorical data
D. Test scores
Answer: Option B
Solution (By JKSSB Mock Tests)
Geometric mean correctly averages multiplicative processes (e.g., compound growth rates) by taking the nth root of the product, avoiding bias from arithmetic mean in ratio contexts.

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Practice More Statistics Questions

Question #1
A set of 9 numbers has mean 12. If a number 15 is removed, the new mean is:
A. 13.0
B. 12.0
C. 11.5
D. 11.625

Correct Answer: Option D


Explanation:
Sum initially = 9 × 12 = 108. After removing 15, sum = 93, n = 8. New mean = 93/8 = 11.625.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Age-Specific Fertility Rate for 25-29 years is 120 per 1,000 women. This means:
A. 12% of women aged 25-29 give birth each year
B. Women in this age group have 120 children on average
C. For every 1,000 women aged 25-29, there are 120 live births in a year
D. 120 is the total fertility rate contribution from this age group

Correct Answer: Option C


Explanation:
ASFR = (Births to women in age group / Women in age group) × 1,000. An ASFR of 120 indicates 120 annual births per 1,000 women aged 25-29, reflecting age-specific fertility intensity.

This question belongs to: Accountancy and Statistics Statistics
Question #3
If NRR equals 1, the population is said to be:
A. Growing rapidly
B. Exactly replacing itself
C. Migrating
D. Declining

Correct Answer: Option B


Explanation:
NRR = 1 implies each generation replaces itself exactly.

This question belongs to: Accountancy and Statistics Statistics