Question

A researcher posts a mobile advertisement offering $15 in exchange for participation in a short study. The researcher accepts the first 15 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 not a random sample of the population.
It is a valid sample because the first 15 people were selected to participate.
It is a valid sample because money was offered to participants.
It is not a valid sample because it is only a short study.
PLS HELP

Answer 1

Answer: It is not a valid sample because it is not a random sample of the population.

Step-by-step explanation: I'm taking this test right now on FLVS.

Answer 2

A.) It is not a valid sample because it is not a random sample of the population.