The weighted harmonic mean is used to average: MCQ with Answer and Explanation
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Question #1
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Which of the following statements about demography is true?
Correct Answer: Option D
Explanation:
Census is a complete count of a population. Demography also studies composition, distribution; vital statistics includes marriages; migration affects population change.
Census is a complete count of a population. Demography also studies composition, distribution; vital statistics includes marriages; migration affects population change.
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Accountancy and Statistics
Statistics
Question #2
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If the Net Reproduction Rate (NRR) is exactly 1, what does it signify for the population over the long term, assuming no migration?
Correct Answer: Option D
Explanation:
An NRR of 1 means each woman is replacing herself with exactly one surviving daughter, indicating replacement-level fertility.
An NRR of 1 means each woman is replacing herself with exactly one surviving daughter, indicating replacement-level fertility.
This question belongs to:
Accountancy and Statistics
Statistics
Question #3
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Yule's coefficient of association Q is calculated using frequencies from a:
Correct Answer: Option A
Explanation:
Yule's Q = [(AB)(αβ) - (Aβ)(αB)] / [(AB)(αβ) + (Aβ)(αB)], requiring the four cell frequencies of a 2×2 table cross-classifying two dichotomous attributes.
Yule's Q = [(AB)(αβ) - (Aβ)(αB)] / [(AB)(αβ) + (Aβ)(αB)], requiring the four cell frequencies of a 2×2 table cross-classifying two dichotomous attributes.
This question belongs to:
Accountancy and Statistics
Statistics
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