If every observation in a dataset is doubled, the arithmetic mean: MCQ with Answer and Explanation
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Question #1
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The geometric mean is most appropriate for averaging:
Correct Answer: Option A
Explanation:
Geometric mean is suitable for averaging ratios and percentage changes because it accounts for compounding.
Geometric mean is suitable for averaging ratios and percentage changes because it accounts for compounding.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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A bag contains 5 red, 4 blue, 3 green balls. Two balls are drawn without replacement. Probability that both are same color is:
Correct Answer: Option D
Explanation:
Total ways C(12,2)=66. Favorable: C(5,2)+C(4,2)+C(3,2) = 10+6+3=19. Probability=19/66.
Total ways C(12,2)=66. Favorable: C(5,2)+C(4,2)+C(3,2) = 10+6+3=19. Probability=19/66.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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The mode is not unique when:
Correct Answer: Option B
Explanation:
If two or more values share the maximum frequency, the distribution is multimodal.
If two or more values share the maximum frequency, the distribution is multimodal.
This question belongs to:
Accountancy and Statistics
Statistics
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