bar chart. This graph is suitable for a variable of at least a nominal level of measurement. This graph is suitable for displaying how often something occurs.

pie chart. This graph is suitable for a variable of at least a nominal level of measurement. The level of measurement of dem54 is ratio.

This graph is suitable for displaying how often something occurs in relative terms. However, only use a pie chart when you don't have that many categories to show, otherwise the graph is not interpretable anymore. In that case, always use a bar chart.

bar chart. This graph is suitable for a variable of at least a nominal level of measurement. The level of measurement of dem52 is ratio. This graph is suitable for displaying how often something occurs. Here, you are being asked for the distribution of the 'number' of days.

box plot. This graph is suitable for a variable of at least an ordinal level of measurement.

This graph is suitable for displaying the distribution of an ordinal variable.

histogram. This graph is suitable for a variable of at least an interval level of measurement. This graph is suitable for displaying the shape of the distribution of the 'age' variable.

Pie chart.

This graph is suitable for a variable of at least a nominal level of measurement. This graph is suitable for displaying how often something occurs in relative terms.

However, only use a pie chart when you don't have that many categories to show, otherwise the graph is not interpretable anymore. In that case, always use a bar chart.

bar chart. This graph is suitable for a variable of at least a nominal level of measurement. This graph is suitable for displaying how often something occurs.