Identify the examples of random sampling.

Random Sampling

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A store gives every twentieth customer a gift card in exchange for filling out a customer satisfaction questionnaire.

A health insurer uses a computer$-$generated random list of plan members to conduct a quality$-$control review.

A focus group, made up of volunteers, is asked what they think of three videos promoting water conservation.

A journalist approaches a table at a political event and asks everyone at the table their opinion of the host organization.