Mathematics, 28.06.2019 11:20, ananyaamazing

Aresearcher posts a newspaper advertisement offering $20 in exchange for participation in a short study. the researcher accepts the first five people who respond to the advertisement. which of the following statements is true about the sample? it is not a valid sample because it is only a short study. it is a valid sample because money was offered to participants. it is a valid sample because the first five people were selected to participate. it is not a valid sample because it is not a random sample of the population.

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Aresearcher posts a newspaper advertisement offering $20 in exchange for participation in a short st...