The mode of a distribution is the value at which the frequency curve: MCQ with Answer and Explanation
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Question #1
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In a moderately skewed distribution, the empirical relationship is Mode ≈ 3×Median - 2×Mean. If Mean=60 and Median=58, Mode is approximately:
Correct Answer: Option D
Explanation:
Mode ≈ 3×58 - 2×60 = 174 - 120 = 54. This approximation, attributed to Pearson, holds for unimodal distributions with moderate skewness.
Mode ≈ 3×58 - 2×60 = 174 - 120 = 54. This approximation, attributed to Pearson, holds for unimodal distributions with moderate skewness.
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Accountancy and Statistics
Statistics
Question #2
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Which of the following is a principle of good questionnaire design?
Correct Answer: Option C
Explanation:
Logical flow helps respondents understand and answer accurately.
Logical flow helps respondents understand and answer accurately.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Consider the following statements about primary data: 1. It is collected directly by the investigator. 2. It is always more reliable than secondary data. 3. It is economical in terms of time and cost. Which of the statements is/are correct?
Correct Answer: Option A
Explanation:
Primary data is collected firsthand (1 correct). It is not necessarily more reliable than secondary data, and it is more expensive and time-consuming (2,3 false).
Primary data is collected firsthand (1 correct). It is not necessarily more reliable than secondary data, and it is more expensive and time-consuming (2,3 false).
This question belongs to:
Accountancy and Statistics
Statistics
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