Question

When each and every unit of universe is studied then it is called?
(A) census investigation
(B)sample investigation
(C) practical investigation
(D) none of the above

Answer 1

Answer:

D is the correct answer

Explanation:

Because Census is related to survey

Sample and universe had no relation

Practical is related to physics and chemistry but not of cosmology

Answer 2

Option A is the correct answer.

In census investigation each and every unit of universe is studied.

Census Investigation

1. It is for the very same reason also known as 'complete enumeration.
2. It is used to carry out intensive or in-depth studies.
3. It studies many areas related to a given problem.
4. For e.g. while doing population census in India, other important paramenters are also studied such as birth rate, death rates, literacy, life expectancy etc.