What is qualitative data?

• A. Quantitative numeric data
• B. Categorical based on subjective characteristics or discrete attributes
• C. Data captured by sensors
• D. Probabilistic estimates

Answer: (B)

Qualitative data refers to information described by qualities or categories rather than numbers. It captures attributes or characteristics that can be grouped into categories, often based on subjective judgment or discrete distinctions, such as color, type, or opinion categories. This is different from numeric measurements, which are quantitative, and from data produced by sensors, which are typically numeric readings. Probabilistic estimates convey likelihoods rather than distinct categories. So qualitative data is best described as categorical data based on subjective characteristics or discrete attributes.