If NRR equals 1, the population is said to be: MCQ with Answer and Explanation

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If NRR equals 1, the population is said to be:

A. Exactly replacing itself

B. Declining

C. Migrating

D. Growing rapidly

Answer: Option A

Solution (By JKSSB Mock Tests)

NRR = 1 implies each generation replaces itself exactly.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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In a normal distribution, approximately what percentage of data falls within Mean ± 1 Standard Deviation?

A. 95.45%

B. 50%

C. 99.73%

D. 68.27%

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Correct Answer: Option D

Explanation:
According to the empirical rule for normal distributions, roughly 68.27% of observations lie within one standard deviation of the mean.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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If (AB)=30, (Aβ)=20, (αB)=10, (αβ)=40, the total number of observations N is:

A. 90

B. 80

C. 100

D. 110

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Correct Answer: Option C

Explanation:
N = (AB) + (Aβ) + (αB) + (αβ) = 30+20+10+40 = 100.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Which of the following is NOT a measure of fertility?

A. Age Specific Fertility Rate

B. Infant Mortality Rate

C. General Marital Fertility Rate

D. Crude Birth Rate

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Correct Answer: Option B

Explanation:
Infant mortality rate measures deaths of infants, not births; it is a mortality indicator.

This question belongs to: Accountancy and Statistics Statistics

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