Which of the following is a feature of a good census? MCQ with Answer and Explanation

Which of the following is a feature of a good census?

A. All of the above

B. Periodicity

C. Universal coverage within a defined territory

D. Simultaneity

Answer: Option A

A modern census requires universal coverage, simultaneous enumeration, and regular periodicity (usually 10 years).

This question belongs to: Accountancy and Statistics Statistics

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Question #1 Report Error

A person travels from A to B at 40 km/h and returns from B to A at 60 km/h. His average speed for the whole journey is:

A. 48 km/h

B. 52 km/h

C. 50 km/h

D. 45 km/h

Correct Answer: Option A

Explanation:
For equal distances, use Harmonic Mean: 2ab/(a+b) = 2(40)(60)/(100) = 4800/100 = 48 km/h.

This question belongs to: Accountancy and Statistics Statistics

Question #2 Report Error

The geometric mean of a set of values is less than or equal to the arithmetic mean. This is known as:

A. AM-GM inequality

B. Central limit theorem

C. Bayes' theorem

D. Time reversal test

Correct Answer: Option A

Explanation:
For non-negative numbers, AM ≥ GM always holds.

This question belongs to: Accountancy and Statistics Statistics

Question #3 Report Error

Which of the following is a direct measure of fertility?

A. Crude birth rate

B. Total fertility rate

C. All of the above

D. Child-Woman ratio

Correct Answer: Option C

Explanation:
All are measures of fertility, though TFR is more refined.

This question belongs to: Accountancy and Statistics Statistics