Which data type uses values that identify items without implying order?

• A. Nominal data
• B. Ordinal data
• C. Interval data
• D. Ratio data

Answer: (A)

Nominal data identify items by labels or names without implying any order. The values simply distinguish categories, like eye color (blue, brown, green) or country codes (US, FR, JP). Because there’s no inherent ranking or magnitude, you can count how many items fall into each category and compute a mode or frequency, but you cannot meaningfully talk about averages or differences between categories.

In contrast, ordinal data convey an order (like ranks), interval data assume equal distances between values but no true zero, and ratio data have a true zero allowing meaningful ratios. This question specifically describes labeling without any implied order, which is why nominal data is the best fit.