In the context of attributes, the notation (Aβ) represents: MCQ with Answer and Explanation

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In the context of attributes, the notation (Aβ) represents:

A. Number having A and B

B. Number having A but not B

C. Number not having A but having B

D. Number not having A and not having B

Answer: Option B

Solution (By JKSSB Mock Tests)

β means not B.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Two cards are drawn from a deck without replacement. The probability that both are aces is:

A. 1/169

B. 4/663

C. 1/221

D. 1/1326

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Correct Answer: Option C

Explanation:
P = (4/52)×(3/51) = 12/2652 = 1/221.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The Circular Test of an index number is an extension of the:

A. Time Reversal Test

B. Unit Test

C. Proportionality Test

D. Factor Reversal Test

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Correct Answer: Option A

Explanation:
The Circular Test requires P01 * P12 * P20 = 1, extending the logic of the time reversal test to multiple periods.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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A study records literacy (A) and employment (B) in a population of 1000. Given (A)=600, (B)=700, (AB)=450. The coefficient of association suggests:

A. Perfect positive association

B. Negative association

C. Positive association

D. No association (independence)

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Correct Answer: Option C

Explanation:
Expected (AB) under independence = (600×700)/1000 = 420. Observed (AB)=450 > 420, indicating positive association. Yule's Q = [(450×150) - (150×250)] / [(450×150) + (150×250)] = (67500-37500)/(67500+37500)=30000/105000≈0.286, confirming positive but not perfect association.

This question belongs to: Accountancy and Statistics Statistics

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