Population density is highest in regions with: MCQ with Answer and Explanation

Question
Population density is highest in regions with:
A. Political instability
B. High altitude and extreme temperatures
C. Arid climate and poor soil
D. Fertile land, water availability, and economic opportunities
Answer: Option D
Solution (By JKSSB Mock Tests)
Population density correlates with habitability factors: fertile soil, water, moderate climate, and jobs attract settlement, leading to high density in river valleys, coasts, and urban centers.
This question belongs to: Accountancy and Statistics Statistics
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Practice More Statistics Questions

Question #1
In a well-designed questionnaire, questions on income should be:
A. In the middle, with no introduction
B. At the beginning to motivate
C. Towards the end, as they are sensitive
D. Randomly placed
Discuss
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Correct Answer: Option C

Explanation:
Sensitive questions are placed later to build trust and reduce dropout.
This question belongs to: Accountancy and Statistics Statistics
Question #2
If events A and B are independent, which of the following is true regarding their complements A' and B'?
A. They are also independent
B. They are completely associated
C. They are mutually exclusive
D. They are dependent
Discuss
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Correct Answer: Option A

Explanation:
A fundamental theorem of probability states that if A and B are independent, their complements A' and B' are also independent.
This question belongs to: Accountancy and Statistics Statistics
Question #3
Given (AB)=30, (Aβ)=10, (αB)=10, (αβ)=10. The value of Yule's Q is:
A. 0.2
B. 0.8
C. 0.5
D. 0.33
Discuss
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Correct Answer: Option C

Explanation:
ad=30×10=300, bc=10×10=100. Q=(300-100)/(300+100)=200/400=0.5.
This question belongs to: Accountancy and Statistics Statistics
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