There are many such methods: cluster sampling, stratified random sampling, simple random sampling.Their usefulness depends on the circumstances.
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Simple random sampling, stratified random sampling and cluster sampling are all based on a degree of randomness; other methods less so.
Answer is Quota sampling. Its one of the method of non-probability sampling.
Simple random sampling.
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advantage of probability sampling
In probability sampling,every item in the population has a known chance of being selected as a member.In non-probability sampling, the probability that any item in the population will be selected for a sample cannot be determined.