Conditional probability P(A|B) is defined only when: MCQ with Answer and Explanation

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Conditional probability P(A|B) is defined only when:

A. P(B) > 0

B. A and B are mutually exclusive

C. P(A) > 0

D. A and B are independent

Answer: Option A

Solution (By JKSSB Mock Tests)

The definition P(A|B) = P(A∩B)/P(B) requires P(B) > 0.

This question belongs to: Accountancy and Statistics Statistics

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Gross Reproduction Rate (GRR) considers only:

A. Infant deaths

B. Total births

C. Male births

D. Female births

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Correct Answer: Option D

Explanation:
GRR measures the average number of daughters a woman would bear in her reproductive life.

This question belongs to: Accountancy and Statistics Statistics

Question #2

If the variance of a dataset is 16, the standard deviation is:

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Correct Answer: Option A

Explanation:
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Question #3

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Correct Answer: Option D

Explanation:
GM requires all values to be strictly positive; zero or negatives make it undefined.

This question belongs to: Accountancy and Statistics Statistics

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