Yule's coefficient of association is undefined when: MCQ with Answer and Explanation

Yule's coefficient of association is undefined when:
A. Attributes are independent
B. N is odd
C. (AB)(αβ) + (Aβ)(αB) = 0
D. (AB) = 0
Answer: Option C
Solution (By JKSSB Mock Tests)
Yule's Q = [(AB)(αβ) - (Aβ)(αB)] / [(AB)(αβ) + (Aβ)(αB)]; if the denominator is zero (all cells zero or impossible configuration), Q is undefined, though this rarely occurs in real data.

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Practice More Statistics Questions

Question #1
In attribute theory, the term 'ultimate class frequencies' refers to:
A. Frequencies of the original attributes only
B. Frequencies of the fundamental disjoint classes like (AB), (Aβ), etc.
C. Total frequency N
D. Cumulative frequencies of classes

Correct Answer: Option B


Explanation:
Ultimate classes are the non-overlapping categories formed by combinations of attributes and their negations.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Standardized death rate removes the effect of:
A. Urban-rural differences
B. Sex ratio differences
C. Income differences
D. Age composition differences

Correct Answer: Option D


Explanation:
Age standardization adjusts for differing age structures between populations.

This question belongs to: Accountancy and Statistics Statistics
Question #3
For a set of discrete values, which measure of central tendency minimizes the sum of squared deviations?
A. Mode
B. Arithmetic Mean
C. Median
D. Harmonic Mean

Correct Answer: Option B


Explanation:
A fundamental property of the arithmetic mean is that the sum of the squares of deviations from it is always minimum.

This question belongs to: Accountancy and Statistics Statistics