Which of the following ensures that a questionnaire is reliable? MCQ with Answer and Explanation

Question
Which of the following ensures that a questionnaire is reliable?
A. Including ambiguous terms
B. Asking leading questions
C. Clear and simple language
D. Making it very long
Answer: Option C
Solution (By JKSSB Mock Tests)
Clarity and simplicity improve understanding and reduce measurement error.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
Which index number is most commonly used to measure inflation and changes in the purchasing power of money for standard households?
A. Consumer Price Index (Cost of Living Index)
B. Sensex
C. Wholesale Price Index
D. Index of Industrial Production
Discuss
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Correct Answer: Option A

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
The primary purpose of the Consumer Price Index (CPI) is to measure:
A. Producer cost inflation
B. Export price competitiveness
C. Changes in the retail prices of a fixed basket of consumer goods and services
D. Wholesale market price trends
Discuss
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Correct Answer: Option C

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
Question #3
Which measure of central tendency is undefined for data containing zero?
A. Harmonic mean
B. Geometric mean
C. Median
D. Arithmetic mean
Discuss
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Correct Answer: Option A

Explanation:
Harmonic mean involves reciprocals; if any value is zero, reciprocal is infinite, so it's undefined.
This question belongs to: Accountancy and Statistics Statistics
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