Data values that provide a name or identifier so that values can be discriminated are called?

Data values that provide a name or identifier so that values can be discriminated are called?

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

Answer: (C)

Data values that provide a name or identifier to discriminate among categories are nominal data. This level uses labels that distinguish groups without conveying any natural order or numeric magnitude. The purpose is identification rather than ranking or measuring quantity. You can tally how many observations fall into each label and compare frequencies, but you can’t meaningfully perform arithmetic or compute averages on these labels. For example, categories like types of fruit, colors, or patient IDs serve as names that separate cases. In contrast, ordinal data would require a meaningful order (like small, medium, large), interval data would have numeric differences that are consistent but no true zero (like temperature in Celsius), and ratio data would have a true zero and allow meaningful ratios (like height or weight).

Data values that provide a name or identifier to discriminate among categories are nominal data. This level uses labels that distinguish groups without conveying any natural order or numeric magnitude. The purpose is identification rather than ranking or measuring quantity. You can tally how many observations fall into each label and compare frequencies, but you can’t meaningfully perform arithmetic or compute averages on these labels.

For example, categories like types of fruit, colors, or patient IDs serve as names that separate cases. In contrast, ordinal data would require a meaningful order (like small, medium, large), interval data would have numeric differences that are consistent but no true zero (like temperature in Celsius), and ratio data would have a true zero and allow meaningful ratios (like height or weight).