If P(A)=0.6, P(B)=0.5, and P(A∩B)=0.3, then P(A'|B) is: MCQ with Answer and Explanation

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If P(A)=0.6, P(B)=0.5, and P(A∩B)=0.3, then P(A'|B) is:

A. 0.4

B. 0.6

C. 0.5

D. 0.2

Answer: Option A

Solution (By JKSSB Mock Tests)

P(A'|B) = 1 - P(A|B). P(A|B) = 0.3/0.5 = 0.6. So P(A'|B)=0.4.

This question belongs to: Accountancy and Statistics Statistics

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Data collected for the first time by an investigator for a specific purpose is called:

A. Compiled data

B. Primary data

C. Secondary data

D. Published data

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Correct Answer: Option B

Explanation:
Primary data is original data collected fresh for a particular research objective.

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The Maternal Mortality Ratio (MMR) in India has recently declined to around:

A. 50 per 100,000

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C. 200 per 100,000

D. 113 per 100,000 live births

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Correct Answer: Option D

Explanation:
As per SRS 2016-18, India's MMR was 113 per 100,000 live births.

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Life expectancy at birth is calculated using:

A. Crude death rate only

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Correct Answer: Option B

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