If NRR = 1, it indicates: MCQ with Answer and Explanation

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If NRR = 1, it indicates:

A. Population is declining

B. Zero fertility

C. High population growth

D. Population is exactly replacing itself

Answer: Option D

Solution (By JKSSB Mock Tests)

NRR = 1 means each woman is replaced by exactly one daughter who survives to reproductive age, implying exact replacement.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

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The median of the dataset: 10, 15, 20, 25, 30, 35 is:

A. 22.5

B. 30

C. 20

D. 25

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Correct Answer: Option A

Explanation:
With 6 observations (even), median = average of 3rd and 4th values in ordered list: (20 + 25)/2 = 22.5. This splits the data into two equal halves.

This question belongs to: Accountancy and Statistics Statistics

Question #2

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A box contains 4 white and 6 black balls. A ball is drawn and not replaced. Then another ball is drawn. The probability that both are white is:

A. 1/6

B. 12/90

C. 2/15

D. 6/90

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Correct Answer: Option C

Explanation:
(4/10)×(3/9)=12/90=2/15.

This question belongs to: Accountancy and Statistics Statistics

Question #3

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Which index method is best suited when a new commodity is introduced frequently over consecutive years?

A. Simple Aggregative Method

B. Laspeyres Method

C. Chain Base Index

D. Fixed Base Index

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Correct Answer: Option C

Explanation:
The Chain Base method allows for the easy inclusion or deletion of items year-by-year, maintaining relevance.

This question belongs to: Accountancy and Statistics Statistics

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