A psychologist wants to study whether there is a correlation
between sleep deprivation and the diagnosis of ADD in students. She
randomly selects 20 students who are diagnosed with ADD and times
how long they are asleep. She found the students slept, on average,
six hours a night.
What is the sample?
A. Group of answer choices
B. The 20 students studied
C. Students
D. Students diagnosed with ADD
E. The students studied who didn't get enough sleep
F. Everyone with sleep deprivation
G. The average of six hours
H. Everyone with ADD