Question:

Which one of the following is a non-probability sampling?

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Probability sampling: Systematic, Cluster, Stratified, Area; Non-probability sampling: Quota, Convenience, Judgmental, Snowball.
  • Quota sampling
  • Systematic sampling
  • Cluster sampling
  • Area sampling
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The Correct Option is A

Solution and Explanation

Step 1: Understanding the Concept:
Sampling techniques are broadly divided into probability (random) sampling and non-probability (non-random) sampling.

Step 2: Detailed Explanation:

1. Probability Sampling: Every population unit has a known, non-zero probability of selection (e.g., Simple Random, Systematic, Stratified, Cluster, Area sampling).
2. Non-Probability Sampling: Selection relies on subjective researcher judgment or convenience (e.g., Quota, Purposive, Convenience, Snowball sampling).

Step 3: Final Answer:

Thus, quota sampling is a non-probability sampling method.
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