+**Nominal data** assigns observations to named categories that lack any inherent order or hierarchy. Each category is a distinct label, such as "red" or "blue," offering no quantifiable relationship or rank, unlike [Ordinal Data](/wiki/ordinal_data) or other [Data Types](/wiki/data_type).
+## See also
+- [Categorical Data](/wiki/categorical_data)
+- [Ordinal Data](/wiki/ordinal_data)
+- [Interval Data](/wiki/interval_data)
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