In attributes, if (A)=70, (B)=50, (αβ)=10, and N=100, then (AB) is: MCQ with Answer and Explanation

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In attributes, if (A)=70, (B)=50, (αβ)=10, and N=100, then (AB) is:

A. 30

B. 40

C. 10

D. 20

Answer: Option A

Solution (By JKExamLibrary)

(αβ)= N - (A) - (B) + (AB) ⇒ 10 = 100 -70 -50 + (AB) ⇒ (AB)=30.

This question belongs to: Accountancy and Statistics Statistics

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Which of the following is a potential limitation of secondary data?

A. It may not align perfectly with the current research objectives

B. It is always outdated

C. It requires ethical clearance for every use

D. It cannot be used for statistical analysis

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Correct Answer: Option A

Explanation:
Secondary data was collected for a different purpose, so it may lack relevance, specificity, or compatibility with the current study's requirements, necessitating careful evaluation.

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Standardized death rate is used to compare mortality between populations with different:

A. Fertility rates

B. Income levels

C. Age structures

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Correct Answer: Option C

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Age structure affects crude death rates; standardization removes this effect to allow fair comparison.

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If the number of women aged 15-49 is 20,000 and live births are 500, GFR per 1000 women is:

A. 20

B. 40

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D. 25

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Correct Answer: Option D

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GFR = (500 / 20000) × 1000 = 25 per 1000 women.

This question belongs to: Accountancy and Statistics Statistics

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