If Yule's coefficient Q = 0 for attributes A and B, this indicates: MCQ with Answer and Explanation

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If Yule's coefficient Q = 0 for attributes A and B, this indicates:

A. Perfect negative association

B. Data inconsistency

C. No association (independence)

D. Perfect positive association

Answer: Option C

Solution (By JKSSB Mock Tests)

Yule's Q = 0 when (AB)(αβ) = (Aβ)(αB), which is the condition for statistical independence between attributes A and B in a 2×2 table.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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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:

A. 15/66

B. 20/66

C. 12/66

D. 19/66

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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.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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Crude Death Rate (CDR) for a population of 50,000 with 400 deaths in a year is:

A. 0.8 per 1000

B. 0.08 per 1000

C. 8 per 1000

D. 80 per 1000

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Correct Answer: Option C

Explanation:
CDR = (400 / 50000) × 1000 = 0.008 × 1000 = 8 per 1000.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Vital statistics mainly record:

A. Educational data

B. Crop production

C. Industrial output

D. Births, deaths, and marriages

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Correct Answer: Option D

Explanation:
Vital events include births, deaths, marriages, divorces.

This question belongs to: Accountancy and Statistics Statistics

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