It is recommended to use the whole population rather than a sample when the population size is:

It is recommended to use the whole population rather than a sample when the population size is: (a) 500 or less

(b) 100 or less

(c) 1000 or less

(d) You should always use a sample

✅ Correct option: (b) 100 or less

Explanation:

When the population size is 100 or fewer, it is recommended to study the entire population because it is manageable, reduces error, and eliminates sampling bias. This is essentially a census. Thus, option (b) is correct.

10 Related PPSC Facts:

Small populations allow census Reduces sampling error Improves accuracy Cost-effective for small groups Eliminates bias Used in classroom research Time-efficient No estimation needed Complete data obtained Recommended by researchers