If GRR is 1.2, it means: MCQ with Answer and Explanation

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If GRR is 1.2, it means:

A. A woman has 1.2 daughters on average

B. Population growth is 1.2%

C. A woman has 1.2 children on average

D. 1.2 births per 1000 women

Answer: Option A

Solution (By JKSSB Mock Tests)

GRR measures average number of daughters per woman.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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In Bayes' theorem, P(A|B) is called:

A. Posterior probability

B. Marginal

C. Likelihood

D. Prior probability

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Correct Answer: Option A

Explanation:
P(A|B) updates prior using evidence, giving posterior.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The notation (αβ) indicates items that:

A. Possess neither A nor B

B. Possess both A and B

C. Possess B but not A

D. Possess A but not B

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Correct Answer: Option A

Explanation:
α is not A, β is not B, so (αβ) = items without A and without B.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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A box has 4 red, 3 blue, and 3 green balls. If two balls are drawn with replacement, the probability both are red is:

A. 4/100

B. 12/100

C. 16/100

D. 9/100

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Correct Answer: Option C

Explanation:
With replacement, P(red) = 4/10 = 0.4 each draw. P(both red) = 0.4 × 0.4 = 0.16 = 16/100. Replacement ensures independence between draws.

This question belongs to: Accountancy and Statistics Statistics

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