Mathematics · Non-Probability Sampling
Which of the following statements are CORRECT regarding non-random (non-probability) sampling? A. If observations are selected purposively, it is a method of non-random sampling. B. If observations are selected in an ad-hoc manner, it is a method of non-random sampling. C. If observations are selected in a systematic manner, it is a method of non-random sampling. D. If observations are selected on the basis of judgment, it is a method of non-random sampling. Choose the correct answer:
- 1A and D only
- 2B, C and D only
- 3A, B, C and D
- 4A, B and D only✓
Correct answer
A, B and D only
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