Which of the following averages cannot be calculated if the distribution has open-end classes at both extremes? MCQ with Answer and Explanation

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Which of the following averages cannot be calculated if the distribution has open-end classes at both extremes?

A. Arithmetic Mean

B. Mode

C. Quartiles

D. Median

Answer: Option A

Solution (By JKSSB Mock Tests)

Mean requires precise midpoints for all classes. Open-end classes lack boundaries, making precise mean calculation impossible.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Which index number is most commonly used to measure inflation and changes in the purchasing power of money for standard households?

A. Sensex

B. Consumer Price Index (Cost of Living Index)

C. Wholesale Price Index

D. Index of Industrial Production

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Correct Answer: Option B

Explanation:
The CPI (or Cost of Living Index) measures the average change in prices paid by consumers for a basket of goods and services.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The de facto method of census enumeration counts:

A. Only permanent residents

B. All persons present in the country at the census moment

C. All usual residents regardless of location

D. Only citizens

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Correct Answer: Option B

Explanation:
De facto method enumerates people where they are found on census night, including temporary visitors.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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The median of 12, 15, 11, 18, 20 is:

A. 15

B. 20

C. 11

D. 18

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Correct Answer: Option A

Explanation:
Ordered: 11, 12, 15, 18, 20. Median = 15 (middle value).

This question belongs to: Accountancy and Statistics Statistics

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