some characteristics of an independent variable are like the heading of a book
It is a measure of how much one variable changes when another variable changes.
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A controlled variable means that it stays the same while other substances change. This helps prove the exact changes in an experiment.
A contrapositive means that if a statement is true, than the characteristics also pertains to the other variable as well.
some characteristics of an independent variable are like the heading of a book
The characteristics are the description.
=having nature or characteristics of a variable=
The variable that depens on a number or anther variable to find it's value.
It is a measure of how much one variable changes when another variable changes.
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Physical Characteristics
situational variables describe characteristics of a situation or environment
... packet-switching networks.
A controlled variable means that it stays the same while other substances change. This helps prove the exact changes in an experiment.
The answer depends on what characteristics of the class are being measured. Without this information it is pointless trying to guess at an answer.