If Yule's coefficient of association (Q) is +1, the attributes are: MCQ with Answer and Explanation

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If Yule's coefficient of association (Q) is +1, the attributes are:

A. Completely positively associated

B. Independent

C. Completely dissociated

D. Inconsistent

Answer: Option A

Solution (By JKExamLibrary)

Q = +1 indicates perfect or complete positive association, where the presence of one attribute implies the other.

This question belongs to: Accountancy and Statistics Statistics

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The weighted harmonic mean is used to average:

A. Performance ratios when weights are proportional to denominator

B. Growth rates

C. Prices when expenditures are equal

D. Speeds when distances vary

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Correct Answer: Option A

Explanation:
Weighted harmonic mean is appropriate when the weights correspond to the denominator of the ratio.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

In a Laspeyres price index, the weights are:

A. Base period prices

B. Base period quantities

C. Current period prices

D. Current period quantities

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Correct Answer: Option B

Explanation:
Laspeyres index weights items by base period quantities, keeping the basket constant.

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Which average is strictly impossible to calculate if any of the observations in the dataset is exactly zero?

A. Arithmetic Mean

B. Geometric Mean

C. Both Geometric and Harmonic Mean

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Correct Answer: Option C

Explanation:
Geometric mean becomes zero if any value is zero, and Harmonic mean involves division by zero, making both invalid.

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