A safety inspector conducts air quality tests on a randomly selected group of 7 classrooms at an elementary
school.
Identify the population and sample in this setting.
Choose 1
A
The population is all classrooms in the district; the sample is the 7 classrooms selected.
B
The population is all classrooms in the elementary school; the sample is the 7 classrooms selected. C
The population is all elementary students in the school; the sample is the students in the 7
classrooms selected.