Which index number formula satisfies both time reversal and factor reversal tests? MCQ with Answer and Explanation
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Question #1
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The probability of obtaining a sum of 9 in a single throw of two dice is:
Correct Answer: Option A
Explanation:
Favorable outcomes: (3,6),(4,5),(5,4),(6,3) → 4. Probability = 4/36 = 1/9.
Favorable outcomes: (3,6),(4,5),(5,4),(6,3) → 4. Probability = 4/36 = 1/9.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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Yule's coefficient of association (Q) for attributes A and B ranges between:
Correct Answer: Option D
Explanation:
Yule's Q = [(AB)(αβ) - (Aβ)(αB)] / [(AB)(αβ) + (Aβ)(αB)], which ranges from -1 (perfect negative association) to +1 (perfect positive association), with 0 indicating independence.
Yule's Q = [(AB)(αβ) - (Aβ)(αB)] / [(AB)(αβ) + (Aβ)(αB)], which ranges from -1 (perfect negative association) to +1 (perfect positive association), with 0 indicating independence.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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The algebraic sum of deviations of observations from the arithmetic mean is:
Correct Answer: Option D
Explanation:
Σ(x - x̄) = 0 is a fundamental property of the arithmetic mean.
Σ(x - x̄) = 0 is a fundamental property of the arithmetic mean.
This question belongs to:
Accountancy and Statistics
Statistics
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