Discussion
Some salient features of a census are
1. Selectivity
2. Simultaneity
3. Universality
4. Periodicity
Find out the correct combination of answer according to the code :
Codes :
Answer: B
The salient features of a census are simultaneity, universality and periodicity, so statements 2, 3 and 4 are correct. A census counts every person in the country at the same reference moment (simultaneity), covers every individual in the defined area without leaving out any group (universality), and is repeated at regular intervals, which in India is every ten years (periodicity).
Selectivity (statement 1) is the opposite of the census principle, since a census is not a selective count but a complete enumeration. Selection of units belongs to sample surveys, so the options containing 1 are wrong.
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