Research Methodology · Research Aptitude
Consider the following statements regarding sampling: 1. Increasing sample size always eliminates sampling bias. 2. Probability sampling ensures each unit has a known non-zero chance of selection. 3. Stratified sampling is more efficient than simple random sampling when population is heterogeneous. 4. Cluster sampling is preferred when population is geographically dispersed. Which of the above statements are correct?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 12, 3 and 4 only✓
- 21, 2 and 3 only
- 31 and 4 only
- 42 and 4 only
Correct answer
2, 3 and 4 only
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