Assertion (A): NRR is a more accurate measure of population replacement than GRR. Reason (R): NRR incorporates female mortality, while GRR does not. MCQ with Answer and Explanation

Assertion (A): NRR is a more accurate measure of population replacement than GRR. Reason (R): NRR incorporates female mortality, while GRR does not.
A. Both A and R are true, but R is not the correct explanation of A
B. A is true but R is false
C. A is false but R is true
D. Both A and R are true, and R is the correct explanation of A
Answer: Option D
Solution (By JKExamLibrary)
NRR adjusts for the probability that female births survive to reproductive ages, providing a realistic assessment of generational replacement, whereas GRR assumes all female births survive, overestimating replacement potential.

This question belongs to: Accountancy and Statistics Statistics

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NRR = 0.8 means:
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B. Each generation is not replacing itself
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Correct Answer: Option B


Explanation:
NRR < 1 indicates population decline in the long run.

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Question #2 Report Error
If the geometric mean of a set of numbers is zero, which statement must be true?
A. At least one number is zero.
B. All numbers are zero.
C. All numbers are equal.
D. All numbers are negative.

Correct Answer: Option A


Explanation:
Geometric mean becomes zero if any observation is zero.

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Correct Answer: Option A


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