When analyzing survey responses, we treated satisfaction level as an ordinal variable to preserve the natural ranking of the categories.

In our survey, gender is recorded as a nominal variable, so we summarize it with frequency counts rather than means.

Temperature measured in Celsius is often treated as an interval variable in statistical analyses because the magnitudes of differences between values are meaningful even though there may be no true zero point.

When writing documentation, I often use 'foo' as a metasyntactic variable to represent an unspecified identifier.

In the equation y = 3x + 5, x is the independent variable because its value does not depend on any other variable.

In the experiment, the dependent variable was the plant's height after four weeks of treatment.

Before running the algorithm, she set the Boolean variable to true to enable the debug mode.

To avoid copying large structures, pass a reference variable to the function instead of duplicating the data.

The variable star near the galactic center dimmed and brightened unpredictably over several nights.

The astronomer used a cepheid variable to calculate the distance to the neighboring galaxy.