________ Are the Largest Source of Tax Income Received by the Federal

question 73

Multiple Choice

________ are the largest source of tax income received by the federal government.

• A) Income taxes
• B) Property taxes
• C) Sales taxes
• D) Excise taxes

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Definitions:

Independent Variable

A variable that an experimenter manipulates.

Control Variable

A variable that is kept constant during a scientific experiment to ensure that any changes in the outcome can be attributed to the variables being tested.

Confounding Variable

A variable that influences both the dependent variable and independent variable, causing a spurious association.

Dependent Variable

The variable in an experiment that is expected to change as a result of manipulations of the independent variable.