Which of the following mortality rates is most sensitive to environmental factors and sanitation? MCQ with Answer and Explanation

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Which of the following mortality rates is most sensitive to environmental factors and sanitation?

A. Infant Mortality Rate (IMR)

B. Crude Death Rate

C. Maternal Mortality Ratio

D. Specific Death Rate for 60+ age group

Answer: Option A

Solution (By JKSSB Mock Tests)

IMR is heavily influenced by external socio-economic, nutritional, and environmental factors, making it a proxy for overall development.

This question belongs to: Accountancy and Statistics Statistics

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Question #1

Which of the following best describes 'demographic dividend'?

A. Increase in old-age dependency

B. Increase in the share of working-age population

C. Increase in population growth rate

D. Increase in fertility

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Correct Answer: Option B

Explanation:
Demographic dividend refers to the economic growth potential from a larger proportion of working-age people.

This question belongs to: Accountancy and Statistics Statistics

Question #2

In a 2×2 attribute table, if (A)=400, (B)=500, N=1000, and observed (AB)=250, the expected (AB) under independence is:

A. 250

B. 200

C. 300

D. 400

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Correct Answer: Option B

Explanation:
Expected (AB) = (A)×(B)/N = 400×500/1000 = 200,000/1000 = 200. Observed 250 > 200 suggests positive association between attributes A and B.

This question belongs to: Accountancy and Statistics Statistics

Question #3

Two events A and B are such that P(A)=0.5, P(B)=0.3, P(A∩B)=0.1. They are:

A. Mutually exclusive

B. Independent

C. Both mutually exclusive and independent

D. Neither mutually exclusive nor independent

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Correct Answer: Option D

Explanation:
P(A∩B)≠0 ⇒ not mutually exclusive. P(A)P(B)=0.15 ≠ 0.1 ⇒ not independent.

This question belongs to: Accountancy and Statistics Statistics

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