a: independent variable ~
b: knob you can turn


"An independent variable is like a knob you can turn - it's an adjustable thing. A dependent variable is what changes when you turn the knob. You can change the hours of study, and as a result the course grade changes. That makes the hours of study the independent variable and the course grade the dependent variable."

Writer: jonmoulton
Date: Oct 14 2015 6:14 PM

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