Categorical data represents characteristics or qualities. Think of it as data that can be divided into groups or categories. It's not about numbers you can do math with, but rather labels or names.
Numerical data, on the other hand, represents quantities that can be measured. This is data you can perform mathematical operations on, like addition, subtraction, multiplication, and division.
| Feature | Categorical Data | Numerical Data |
|---|---|---|
| Definition | Represents qualities or characteristics. | Represents quantities that can be measured. |
| Type | Nominal (unordered) or Ordinal (ordered). | Discrete (countable) or Continuous (measurable). |
| Examples | Colors, names, types of fruit. | Height, weight, temperature. |
| Mathematical Operations | Limited; primarily used for counting and grouping. | Addition, subtraction, multiplication, division are meaningful. |
| Graphs | Bar charts, pie charts. | Histograms, line graphs, scatter plots. |
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