For the above frequencies, Yule's coefficient of association Q is: MCQ with Answer and Explanation

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For the above frequencies, Yule's coefficient of association Q is:

A. 0.5

B. 0.8

C. 0.33

D. 0.714

Answer: Option D

Solution (By JKSSB Mock Tests)

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

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Neonatal mortality rate is a component of:

A. Perinatal mortality rate only

B. Maternal mortality ratio

C. Infant mortality rate

D. Crude death rate

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Correct Answer: Option C

Explanation:
Neonatal deaths (0-28 days) are part of infant deaths.

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Question #2

The term 'demographic transition' refers to:

A. Migration from rural to urban areas

B. Shift from high birth and death rates to low birth and death rates

C. Change in age structure only

D. Increase in population density

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Correct Answer: Option B

Explanation:
Demographic transition is the historical shift from high fertility/mortality to low fertility/mortality.

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Question #3

A set of 9 numbers has mean 12. If a number 15 is removed, the new mean is:

A. 13.0

B. 11.625

C. 12.0

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Correct Answer: Option B

Explanation:
Sum initially = 9 × 12 = 108. After removing 15, sum = 93, n = 8. New mean = 93/8 = 11.625.

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