Question

The track-and-field coach wants to know whether the students in the entire school prefer track races or field events. The coach draws a random sample from the following groups:

All students in each grade
All teachers in the school
All boys in each grade in the school
All students on the track-and-field team
Which group best represents the population she should take a random sample from to get the best results for her survey?
All students in each grade
All teachers in the school
All boys in each grade in the school
All students on the track-and-field team

Answer 1

I know it isn't all teachers and it isn't all students on track and field team

Answer 2

But I can't decide if its either all students or all boys

Answer 3

I want to say all boys, cause that sounds more of a random sample

Answer 4

all boys isn't random

Answer 5

id say all people on the track and and field team

Answer 6

agree

Answer 7

all on the team would bias the sample

Answer 8

Ok thank you all.

Answer 9

they give you the answer in the question btw.

"students in the entire school"

Answer 10

I have one more

Answer 11

A researcher posts a magazine advertisement offering $30 in exchange for participation in a short study. The researcher accepts the first three 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 three 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.