Paper 1 · Research Aptitude
A researcher can keep the sample size low if the population is
AHeterogeneous
BInaccessible
CHomogeneous ✓ Correct
DVery large
Correct answer: (C) Homogeneous — A small sample is enough when the population is homogeneous, so that is the answer.
Explanation
★A small sample is enough when the population is homogeneous, so that is the answer.
★A homogeneous population has members who are largely alike.
★So even a small sample can represent it well, since one part resembles the whole.
★A heterogeneous population has much internal variety and needs a larger sample to cover it.
★An inaccessible population is a problem of reach, not a reason to keep the sample small.
★A very large population may still need a good-sized sample, so a small sample suits a homogeneous population.
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