If (A)=60, (B)=40, N=100, and attributes are independent, then (AB) should be: MCQ with Answer and Explanation

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If (A)=60, (B)=40, N=100, and attributes are independent, then (AB) should be:

A. 30

B. 20

C. 24

D. 100

Answer: Option C

Solution (By JKExamLibrary)

Expected (AB) = (A)×(B)/N = 60×40/100 = 24.

This question belongs to: Accountancy and Statistics Statistics

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Practice More Statistics Questions

Question #1 Report Error

Which of the following is NOT a test of index numbers?

A. Circular test

B. Time reversal test

C. Mean test

D. Factor reversal test

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Correct Answer: Option C

Explanation:
Common tests are time reversal, factor reversal, and circular test. 'Mean test' is not standard.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The total of all frequencies in a frequency distribution is equal to the:

A. Mean of the frequencies

B. Highest cumulative frequency

C. Width of the highest class

D. Class mark of the last class

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Correct Answer: Option B

Explanation:
In a 'less than' cumulative frequency distribution, the final cumulative frequency equals the total number of observations (N).

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

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

A. Time Reversal Test

B. Factor Reversal Test

C. Unit Test

D. Proportionality 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

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