Assertion (A): The crude death rate of a developed country may be higher than that of a developing country. Reason (R): Developed countries often have an older age structure. Choose the correct option: MCQ with Answer and Explanation

Assertion (A): The crude death rate of a developed country may be higher than that of a developing country. Reason (R): Developed countries often have an older age structure. Choose the correct option:
A. A is true, R is false
B. Both A and R are true, and R is the correct explanation of A
C. A is false, R is true
D. Both A and R are true, but R is not the correct explanation of A
Answer: Option B
Solution (By JKSSB Mock Tests)
CDR can be higher in developed countries due to larger elderly population, despite lower age-specific mortality. R explains A.

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Practice More Statistics Questions

Question #1
Assertion (A): The arithmetic mean of a set of positive numbers is always greater than or equal to the geometric mean. Reason (R): AM ≥ GM for any set of non-negative numbers, and equality holds when all numbers are equal. Choose the correct option:
A. A is false, R is true
B. A is true, R is false
C. Both A and R are true, but R is not the correct explanation of A
D. Both A and R are true, and R is the correct explanation of A

Correct Answer: Option D


Explanation:
AM-GM inequality is a fundamental property. R correctly states the condition and explains A.

This question belongs to: Accountancy and Statistics Statistics
Question #2
Paasche's price index formula is:
A. Σp₁q₁ / Σp₀q₁ × 100
B. Σp₁q₀ / Σp₀q₀ × 100
C. Σp₁(q₀+q₁) / Σp₀(q₀+q₁) × 100
D. Σp₁q₁ / Σp₀q₀ × 100

Correct Answer: Option A


Explanation:
Paasche index uses current period quantities: Σp₁q₁ / Σp₀q₁ × 100.

This question belongs to: Accountancy and Statistics Statistics
Question #3
In a 2×2 contingency table, if ad > bc, then:
A. A and B are positively associated
B. A and B are negatively associated
C. Data are inconsistent
D. A and B are independent

Correct Answer: Option A


Explanation:
ad > bc indicates positive association.

This question belongs to: Accountancy and Statistics Statistics