Which of the following statements is true for the geometric mean? MCQ with Answer and Explanation

Which of the following statements is true for the geometric mean?

A. GM is always greater than AM.

B. GM = 0 if all values are positive.

C. GM is suitable for averaging ratios and percentages.

D. GM can be calculated for data containing negative values.

Answer: Option C

GM is appropriate for multiplicative data like growth rates. It cannot handle negatives, and GM ≤ AM.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

For independent events A and B with P(A)=0.3, P(B)=0.4, the probability that at least one of them occurs is:

A. 0.82

B. 0.12

C. 0.58

D. 0.70

Correct Answer: Option C

Explanation:
P(A∪B)=0.3+0.4-0.3×0.4=0.7-0.12=0.58.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The Sample Registration System (SRS) in India provides:

A. Complete count of births and deaths

B. Migration data

C. Census results

D. Reliable estimates of fertility and mortality at state and national levels

Correct Answer: Option D

Explanation:
SRS is a large-scale sample survey providing annual estimates of birth and death rates.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Life expectancy at age 1 is generally:

A. Equal to life expectancy at birth

B. Zero

C. Lower than life expectancy at birth

D. Higher than life expectancy at birth

Correct Answer: Option D

Explanation:
Due to high infant mortality, survivors to age 1 have a higher remaining life expectancy than newborns.

This question belongs to: Accountancy and Statistics Statistics