Which example illustrates quantitative data?

• A. Description of pain as 'severe'
• B. Body weight 68 kg
• C. Color of skin
• D. Patient mood

Answer: (B)

Quantitative data are numerical measurements you can quantify with numbers. The body weight example, given with a numeric value and units (68 kg), is the clear instance of quantitative data because it can be measured, compared, and used in calculations. The other items describe qualities or categories rather than numbers: describing pain as severe is a qualitative descriptor of intensity; skin color is a categorical attribute; mood is a subjective state. Weight as a measurable quantity with units fits the definition of quantitative data and is suitable for arithmetic and statistical analysis.