If NRR = 1, the population is: MCQ with Answer and Explanation

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If NRR = 1, the population is:

A. Unstable

B. Declining

C. Exactly replacing itself

D. Growing

Answer: Option C

Solution (By JKSSB Mock Tests)

NRR of 1 indicates replacement level fertility, leading to zero population growth eventually.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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Two events A and B are such that P(A)=0.5, P(B)=0.3, P(A∩B)=0.1. They are:

A. Both mutually exclusive and independent

B. Independent

C. Mutually exclusive

D. Neither mutually exclusive nor independent

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Correct Answer: Option D

Explanation:
P(A∩B)≠0 ⇒ not mutually exclusive. P(A)P(B)=0.15 ≠ 0.1 ⇒ not independent.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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The formula for a simple aggregative price index is:

A. (Σp₁q₁ / Σp₀q₁) × 100

B. √(L×P) × 100

C. (Σp₁q₀ / Σp₀q₀) × 100

D. (Σp₁ / Σp₀) × 100

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Correct Answer: Option D

Explanation:
Simple aggregative index sums prices without weights.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Maternal Mortality Ratio is expressed per 100,000 live births primarily to:

A. Simplify international comparisons

B. Avoid very small decimal values for rare events

C. Align with infant mortality rate units

D. Make the number easier to remember

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Correct Answer: Option B

Explanation:
Maternal deaths are relatively rare; using a base of 100,000 live births yields manageable numbers (e.g., 100-500) instead of tiny decimals (0.001-0.005), enhancing readability and comparison.

This question belongs to: Accountancy and Statistics Statistics

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