Answer:
(3) control group
Explanation:
Control group refers to the group of standar individuals who do not receive treatment by researchers, so that their results are compared with the experiential group which did receive treatment.
In the experiment about pulse rate according to music, the student does not include the average pulse rate of the control group that was not exposed to different types of music.
Answer:
죄송합니다 저는 가장 똑똑한 사람이 필요합니다
Answer:
keep a leveled head, study and stay relaxed
Explanation:
itll keep u in a good head soace