Tom is studying how changes in income affect the frequency of eating out. in this example, "changes in income" is the variable, and "frequency of eating out" is the variable

The answer is: Independent; Dependent

Explanation:

In experimental sciences, dependent variables are dependent on the independent variables. The dependent variables represents the outcome or the output whose whose variation is being studied. Whereas, independent variables, also called regressors, represents the cause or the inputs, that is the potential reason for the variation.

Therefore, in the given example the changes in income is independent variable and frequency of eating out is dependent variable.

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