Crude Birth Rate (CBR) is the number of live births per: MCQ with Answer and Explanation

Crude Birth Rate (CBR) is the number of live births per:

A. 1000 population

B. 1000 live births

C. 1000 women

D. 100 population

Answer: Option A

CBR = (Live births / Mid-year total population) × 1000.

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

A decrease in the crude death rate with an unchanged crude birth rate will cause the rate of natural increase to:

A. Increase

B. Become zero

C. Remain unchanged

D. Decrease

Correct Answer: Option A

Explanation:
Natural increase = CBR - CDR. If CDR falls, the difference increases.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The number of observations falling in a particular class is called:

A. Class mark

B. Cumulative frequency

C. Relative frequency

D. Class frequency

Correct Answer: Option D

Explanation:
Class frequency is the count of data points within a class interval.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

In an examination, 60% candidates passed in English (A), 50% in Math (B), and 30% in both (AB). Are attributes A and B independent?

A. No, they are positively associated

B. Yes, they are independent

C. No, they are negatively associated

D. Data is inconsistent

Correct Answer: Option B

Explanation:
P(A) * P(B) = 0.6 * 0.5 = 0.3. Since P(AB) = 0.3, they are perfectly independent.

This question belongs to: Accountancy and Statistics Statistics