Answer:
dependent/response variable is the students quality of sleep.
Explanatory variable is if student ran it not.
Step-by-step explanation:
This question is trying to tell us the impact of exercise on sleep.
What it is saying is if the time and quality of sleep is related to if a student ran or not.
The result showed that running has a positive effect on how much a person slept.
So the response variable is the persons quality of sleep while the explanatory variable is if the student ran or did not run.