Can you help me with this!?

The director of a children's ballet center is conducting surveys to get feedback about the classes. There are three types of classes, each for a particular age range: 3 through 5, 6 through 8, and 9 through twelve. What term can we use to describe all students in classes for 6 through 8 year olds?

experimental unit

population

sample

subgroup

Question

Can you help me with this!?

The director of a children's ballet center is conducting surveys to get feedback about the classes. There are three types of classes, each for a particular age range: 3 through 5, 6 through 8, and 9 through twelve. What term can we use to describe all students in classes for 6 through 8 year olds?

experimental unit

population

sample

subgroup

texaschic101 · Answer

I can't decide whether it is subgroup or sample. I am leaning towards subgroup.