Graphical visualizations - the basics

An histogram is appropriate for

• Time series data

• Nominal data

• Continuous data

• Ordinal data

The graph shows the proportion of smokers over time within the Netherlands. What is the main problem of the graph?

• The colors are to equal

• Multiple bar chart for time series data

• To much information

• Y-axis is cut at 35%

The figure shows

• stacked bar chart

• pie chart

• histogram

• bar chart

The image shows

• pie chart

• bar chart

• stacked bar chart

• histogram

We asked students whether they have a drivers licence or not. We count 13 students with and 7 without drivers licence. Which graphical representation would be appropriate for this data set?

• pie chart

• histogram

• line plot

• stem and leaf plot

The graph shows the number of person cooling days by country as bars and the percentage of households with air conditioning by country as line. What is wrong with the graph?

• Bars should have different colors

• Line chart for nominal data

• Bar chart for continuous data

• Two different y-axes

What is wrong with the graphical representation?

• Segments are not proportional to percentage

• To many segments

• Pie chart for nominal data

• Colors are too similar

What is wrong with the graphical visualization?

• Volume not proportional to percentage

• Radii not proportional to percentage

• pie chart for nominal data

• Mosaic plot for continuous data

What is wrong with the graph

• Stacked bar chart for time series data

• Numbers do not add up to 100%

• Bar chart for ordinal data

• To many categories

In last years statistic course 18 students got an A, 15 students a B and 8 students a C. Which segment in the pie chart is too large?

• A

• B

• C

• The pie chart is correct.