Nominal variables, such as gender and ethnicity, are usually entered into a data analysis program as
A) letters corresponding to each level of the variable.
B) a ratio scale.
C) numbers corresponding to each level of the variable.
D) words such as male, female, black, and white.

Question

Quizplus · Accepted Answer

Nominal variables, which include categories without a natural order or ranking (like gender, ethnicity, etc.), are typically coded as numbers for each category to facilitate their use in statistical software. Each unique category is assigned a specific number to represent it in the analysis.

Nominal Variables, Such as Gender and Ethnicity, Are Usually Entered