In a set of numbers, if the geometric mean is zero, then: MCQ with Answer and Explanation

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In a set of numbers, if the geometric mean is zero, then:

A. All numbers are zero

B. At least one number is zero

C. The median is zero

D. The arithmetic mean is also zero

Answer: Option B

Solution (By JKSSB Mock Tests)

GM = 0 if any value is zero.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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The index number that uses the geometric mean of price relatives with base year value weights is:

A. Walsh index

B. Fisher index

C. Theil-Tornqvist index

D. Marshall-Edgeworth index

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Correct Answer: Option C

Explanation:
Theil-Tornqvist index uses base and current value shares as weights for geometric mean of price relatives.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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If every observation in a dataset is doubled, the arithmetic mean:

A. Is also doubled

B. Becomes half

C. Remains unchanged

D. Increases by 2

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Correct Answer: Option A

Explanation:
Mean is affected by change of scale; multiplying by 2 scales the mean by 2.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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The primary purpose of the Consumer Price Index (CPI) is to measure:

A. Changes in the retail prices of a fixed basket of consumer goods and services

B. Wholesale market price trends

C. Export price competitiveness

D. Producer cost inflation

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Correct Answer: Option A

Explanation:
CPI tracks the average price change over time for a representative basket of goods and services purchased by households, serving as the main gauge of consumer inflation.

This question belongs to: Accountancy and Statistics Statistics

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