please help medal and fan ^.^

A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of the following statements is true about the sample?

Question

please help medal and fan ^.^

A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of the following statements is true about the sample?

anonymous · Answer

It is not a valid sample because it is only a short study.
 It is a valid sample because money is offered to participants.
 It is a valid sample because the first 10 people were selected to participate.
 It is not a valid sample because it is not a random sample of the population.

anonymous · Answer

@Michele_Laino

michele_laino · Answer

I think that those ten people are not a random sample

anonymous · Answer

Is it a random sample?

anonymous · Answer

yes, i think so cause this is like a quiz about every lesson so im not sure but im pretty sure it is ^_^

anonymous · Answer

@triciaal

anonymous · Answer

It may be.

anonymous · Answer

please help

wolf1728 · Answer

I'm not sure but I'd say:
It is not a valid sample because it is not a random sample of the population.

anonymous · Answer

ok thats fine. I'll go with that one then thanks! ^.^

wolf1728 · Answer

u r welcome lauren :-)

anonymous · Answer

Oh yeah, I agree.. I forgot to say... OOPS