Univariate descriptive statistics - categorical variable

Categorical variable is described using:

a) Frequency table

b) Pie Chart

c) Bar Chart

d) Cumulative Bar Chart



Frequency table

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


Pie Chart

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.

Pie Chart

Bar Chart

The Bar/Column Plot represents sequences of values as bars or columns (one case is represented by one bar/column).

Bar Chart

Cumulative Bar Chart

Cumulative Bar Chart is very similar to Pie Chart except for column is used instead of circle to represent the whole.

Cumulative Bar Chart