Which of the following is a limitation of the questionnaire method? MCQ with Answer and Explanation

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Which of the following is a limitation of the questionnaire method?

A. Requires training of enumerators

B. High cost

C. Low response rate

D. Not suitable for large samples

Answer: Option C

Solution (By JKSSB Mock Tests)

Questionnaires, especially mailed ones, often suffer from poor response rates, leading to bias.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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If a country's population grows from 50 million to 55 million in 10 years, the average annual growth rate (approximate) is:

A. 1.0%

B. 0.5%

C. 1.5%

D. 2.0%

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Correct Answer: Option A

Explanation:
Using the rule of 70 or simple approximation: Growth rate ≈ [(Final/Initial)^(1/t) - 1] × 100 = [(55/50)^(0.1) - 1] × 100 ≈ (1.1^0.1 - 1)×100 ≈ (1.0096 - 1)×100 ≈ 0.96% ≈ 1.0% per annum.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The cost of living index number for 2022 with base 2015 is 150. This implies that a household which spent Rs. 10,000 per month in 2015 needs to spend ______ in 2022 to maintain the same standard of living.

A. Rs. 11,500

B. Rs. 15,000

C. Rs. 12,500

D. Rs. 10,000

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Correct Answer: Option B

Explanation:
Cost of Living Index 150 means the cost has increased by 50%, so new cost = 10,000 × 1.5 = 15,000.

This question belongs to: Accountancy and Statistics Statistics