Categorical variable is described using:
b) Pie Chart
c) Bar Chart
The frequency table records the number of observations falling in each of unique values (or several intervals)
| Education | Count | Percent |
|---|---|---|
| Primary | 17 | 2.72 |
| GCSE | 83 | 13.26 |
| A levels | 428 | 68.37 |
| University | 98 | 15.65 |
The pie chart is constructed by dividing a circle into two or more sections. The chart is used to show the proportion that each part is of the whole. Hence, it should be used when you want to compare individual categories with the whole.
The Bar/Column Plot represents sequences of values as bars or columns (one case is represented by one bar/column).
Cumulative Bar Chart is very similar to Pie Chart except for column is used instead of circle to represent the whole.