Lindsey and Justin want to collect data to find out the favorite afterschool activities of 7th grade students at Schofield Middle School. Which
group of people should Lindsay and Justin survey to achieve the most accurate results?

A: all of the students in band.

B: a random selection of two girls and two boys for each 7th grade class.

C: a random selection of two girls and two boys from the chess club.

Respuesta :

Lindsey and Justin must survey a random selection of two girls and two boys for each 7th grade class to get the most accurate results, so the correct choice is B.

Statistics

This is so because, since precise information is required regarding a particular group of students (7th graders), it would be correct to target members of that group to obtain the first samples of information.

That is, by going to the most reliable source, a more reliable sample would be obtained.

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