Sometimes survey researchers reject randomness and instead use weighting techniques to construct a sample. How is a weighted sample different from a random one?

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Answer:

A weighted sample has similar characteristics, with the larger sample population, hence during survey's researchers reject randomness and instead use weighting techniques to construct a sample, because it looks very much alike and shares similar attributes and characteristics with the  population

Explanation:

A weighted sample has similar characteristics, with the larger sample population, hence during survey's researchers reject randomness and instead use weighting techniques to construct a sample, because it looks very much alike and shares similar attributes and characteristics with the  population