In a well-designed questionnaire, questions on income should be: MCQ with Answer and Explanation

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In a well-designed questionnaire, questions on income should be:

A. In the middle, with no introduction

B. Towards the end, as they are sensitive

C. Randomly placed

D. At the beginning to motivate

Answer: Option B

Solution (By JKExamLibrary)

Sensitive questions are placed later to build trust and reduce dropout.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

For any two events A and B, P(A∪B) is:

A. Both A and B

B. Always ≤ P(A) + P(B)

C. Always ≥ P(A∩B)

D. Always ≤ 1

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Correct Answer: Option A

Explanation:
By the addition rule, P(A∪B) ≤ P(A)+P(B), and probability of any event is ≤1.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

A preliminary test of a questionnaire on a small subset of the population before the main survey is called:

A. Stratification

B. Sampling

C. Pre-testing or Pilot Survey

D. Census

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Correct Answer: Option C

Explanation:
A pilot survey helps in identifying shortcomings in the questionnaire design before full-scale implementation.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

When constructing a frequency polygon, the frequencies are plotted against:

A. Cumulative frequencies

B. Class marks (midpoints)

C. Lower class limits

D. Upper class limits

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Correct Answer: Option B

Explanation:
A frequency polygon connects the points formed by the class frequencies plotted at the exact midpoints of the class intervals.

This question belongs to: Accountancy and Statistics Statistics

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