By taking a systematic sample,in which we select every 50th shopper arriving at a specific store,we are approximating a random sample of shoppers.

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A systematic sample is a type of sampling method in which the samples are chosen at regular intervals from a population. Since every 50th shopper is being selected, the sample is likely to include a random selection of shoppers, making it a close approximation to a random sample.

By Taking a Systematic Sample,in Which We Select Every 50th