A student wants to find the answer to the question “What is the most popular restaurant in Bedford?” He asks 20 randomly selected customers at one local restaurant. Which best describes the accuracy of the results of the survey?

The target population is people in Bedford, but all 20 people surveyed were already eating at the same restaurant. This sample is biased: customers at that restaurant are more likely to favor it than Bedford residents generally. Randomly selecting customers from one restaurant does not make the sample representative of the whole city, so the results will be inaccurate.

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