Which data type includes categories with no intrinsic order?

Which data type includes categories with no intrinsic order?

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

Answer: (A)

Nominal data organize individuals into categories that are just labels with no natural ranking. There is no intrinsic order among the categories, so you can count frequencies or identify the most common category, but you cannot order the categories or discuss meaningful differences between them. This contrasts with ordinal data, where categories have a meaningful order (e.g., stages of severity), interval data where intervals are equal but there is no true zero (e.g., Celsius temperature), and ratio data that have both equal intervals and a true zero (e.g., weight). So, the data type with categories that carry no inherent order is nominal.

Nominal data organize individuals into categories that are just labels with no natural ranking. There is no intrinsic order among the categories, so you can count frequencies or identify the most common category, but you cannot order the categories or discuss meaningful differences between them. This contrasts with ordinal data, where categories have a meaningful order (e.g., stages of severity), interval data where intervals are equal but there is no true zero (e.g., Celsius temperature), and ratio data that have both equal intervals and a true zero (e.g., weight). So, the data type with categories that carry no inherent order is nominal.