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independent variable
[ in-di-pen-duhnt vair-ee-uh-buhl ]
noun
- Mathematics. a variable in a functional relation whose value determines the value or values of other variables, as x in the relation y = 3 x 2 . Compare dependent variable ( def 1 ).
- Statistics. (in an experiment) a variable that is intentionally changed to observe its effect on the dependent variable. Compare dependent variable ( def 2 ), control variable ( def 1 ).
independent variable
noun
- Also calledargument a variable in a mathematical equation or statement whose value determines that of the dependent variable: in y = f( x ), x is the independent variable
- Also calledpredictor statistics the variable which an experimenter deliberately manipulates in order to observe its relationship with some other quantity, or which defines the distinct conditions in an experiment See also experimental condition
independent variable
- In mathematics, a variable whose value determines the value of other variables. For example, in the formula for the area of a circle, A = π r 2, r is the independent variable, as its value determines the value of the area ( A ).
- Compare dependent variable
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Word History and Origins
Origin of independent variable1
First recorded in 1850–55
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Compare Meanings
How does independent variable compare to similar and commonly confused words? Explore the most common comparisons:
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