Rob plans a study about high-school students and their grades.He samples for range,so he includes
A)students with high,average,and low grades.
B)a statistically randomized group of students.
C)high schools from several regions of the nation.
D)middle school students and college students.

Question

Quizplus · Accepted Answer

Sampling for range means selecting participants who represent the full range of grades, including high, average, and low performers. Option B involves statistical randomization, which is not relevant in this case. Option C does not guarantee a representation of the full range of grades within each school. Option D includes groups outside of the target population of high-school students.

Rob Plans a Study About High-School Students and Their Grades