Qualitative or categorical data have no logical order, and can't be translated into a numerical value. Eye colour is an example, because 'brown' is not higher or lower than 'blue'. Quantitative or numerical data are numbers, and that way they 'impose' an order. Examples are age, height, weight.

What is an example of categorical data?

Categorical variables represent types of data which may be divided into groups. Examples of categorical variables are race, sex, age group, and educational level.

What are numerical and categorical variables?

Explanation: A categorical variable is a category or type. For example, hair color is a categorical value or hometown is a categorical variable. ... A numerical variable is a variable where the measurement or number has a numerical meaning.