Independent and dependent variables: Practice worksheet

What was the control group in this experiment? ... List 3 variables that should be held constant in this experiment: 1) Each person should use the same amount of mouthwash. 2) ... It is the y-variable (DEPENDENT VARIABLE) that changes in response to the x-variable. In this graph, only the y-variable changes, as the x-variable remains the same. ... ................
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