Which of the following averages cannot be calculated if a dataset contains a zero? MCQ with Answer and Explanation
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Question #1
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Which of the following is a disadvantage of the mailed questionnaire method for primary data collection?
Correct Answer: Option D
Explanation:
Mailed questionnaires often suffer from low return rates, and respondents who reply may differ systematically from non-respondents, introducing bias that is difficult to assess or correct.
Mailed questionnaires often suffer from low return rates, and respondents who reply may differ systematically from non-respondents, introducing bias that is difficult to assess or correct.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Geometric mean is most appropriate for averaging:
Correct Answer: Option A
Explanation:
Geometric mean correctly averages multiplicative processes (e.g., compound growth rates) by taking the nth root of the product, avoiding bias from arithmetic mean in ratio contexts.
Geometric mean correctly averages multiplicative processes (e.g., compound growth rates) by taking the nth root of the product, avoiding bias from arithmetic mean in ratio contexts.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Laspeyres price index uses weights of:
Correct Answer: Option B
Explanation:
Laspeyres index is Σ(p₁q₀)/Σ(p₀q₀) × 100, using base period quantities as weights.
Laspeyres index is Σ(p₁q₀)/Σ(p₀q₀) × 100, using base period quantities as weights.
This question belongs to:
Accountancy and Statistics
Statistics
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