Mathematics, 27.05.2020 17:57 mothertrucker2828

A researcher posts a radio advertisement offering $35 in exchange for participation in a short study. The researcher accepts the first eight people who respond to the advertisement. Which of the following statements is true about the sample? (5 points) Question 3 options: 1) It is a valid sample because the first eight people were selected to participate. 2) It is not a valid sample because it is not a random sample of the population. 3) It is a valid sample because money was offered to participants. 4) It is not a valid sample because it is only a short study.

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A researcher posts a radio advertisement offering $35 in exchange for participation in a short study...