You are studying the relationship between test grades and the number of hours of sleep students get the night before the exam. What is the independent variable? What is the dependent variable? The independent variable is the test score. The dependent variable is the number of hours of sleep students get the night before the exam. The independent variable is the number of hours the test takes to complete. There is no dependent variable. The independent variable is the number of hours of sleep students get the night before the exam. The dependent variable is the test score. The independent variable is the number of hours of sleep students get the night before the exam. The dependent variable is the number of hours the test takes to complete.
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