Yule's coefficient of association (Q) for attributes A and B ranges between: MCQ with Answer and Explanation

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Yule's coefficient of association (Q) for attributes A and B ranges between:

A. 0 and 1

B. -∞ and +∞

C. 0 and N

D. -1 and +1

Answer: Option D

Solution (By JKSSB Mock Tests)

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

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Question #1

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If each value in a dataset is increased by 10, which of the following measures remains unchanged?

A. Mean

B. First quartile

C. Range

D. Median

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Correct Answer: Option C

Explanation:
Range depends on difference between max and min; both increase by 10, so range unchanged.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The condition (A) ≥ (AB) is necessary for:

A. Negative association

B. Consistency of data

C. Independence

D. Zero association

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Correct Answer: Option B

Explanation:
Consistency requires that marginal frequencies are not less than the joint frequencies.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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The Wholesale Price Index (WPI) excludes:

A. Fuel and power

B. Services

C. Manufactured products

D. Primary articles

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Correct Answer: Option B

Explanation:
WPI covers only goods; it does not include services, unlike CPI.

This question belongs to: Accountancy and Statistics Statistics

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