Independent Variable: 30 pieces of gum
Dependent Variable: 2 pieces of gum
We predict that independent variables will affect dependent variables. What transpires as a result of the independent variable is known as a dependent variable.
The variable you change or manipulate in an experimental study to examine its effects is known as an independent variable. Because it is unaffected by any other study variables, it is referred to as being "independent."
The variable that alters as a result of the modification of the independent variable is known as a dependent variable. The result that interests you is what you're measuring, and it "depends" on your independent variable.
He has 30 pieces of gum which is the independent, 2 would be the dependent.
To learn more about dependent and independent variable link is here
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