If the Net Reproduction Rate (NRR) is exactly 1, what does it signify for the population over the long term, assuming no migration? MCQ with Answer and Explanation
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Question #1
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The weighted harmonic mean is appropriate for averaging:
Correct Answer: Option D
Explanation:
Weighted harmonic mean = Σw / Σ(w/x), ideal for averaging rates or ratios (e.g., price per unit) when the weights correspond to the denominators (e.g., quantities), ensuring correct aggregation.
Weighted harmonic mean = Σw / Σ(w/x), ideal for averaging rates or ratios (e.g., price per unit) when the weights correspond to the denominators (e.g., quantities), ensuring correct aggregation.
This question belongs to:
Accountancy and Statistics
Statistics
Question #2
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For the above frequencies, Yule's coefficient of association Q is:
Correct Answer: Option B
Explanation:
ad = 30×40 = 1200, bc = 20×10 = 200. Q = (1200-200)/(1200+200) = 1000/1400 = 0.714.
ad = 30×40 = 1200, bc = 20×10 = 200. Q = (1200-200)/(1200+200) = 1000/1400 = 0.714.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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The sex ratio in India is defined as:
Correct Answer: Option A
Explanation:
Sex ratio = (number of females / number of males) × 1000.
Sex ratio = (number of females / number of males) × 1000.
This question belongs to:
Accountancy and Statistics
Statistics
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