Data Visualization: A Quiz for Investigative Journalists

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* The graphics used throughout this quiz are from The Data Visualisation Catalogue https://datavizcatalogue.com/ and are used with permission.

1) When creating a graphic, you need to understand what, exactly, you want to show and how best to communicate this to your audience. Some charts are better than others for showing intensity or scale, others are better at showing relationships. There are four graph types below, but five options for what they show. Which term is the odd one out, and cannot be shown by the given functions? *

Comparisons

Proportions

Relationships

Hierarchy

Range

Required

2) The following type of chart, which is often used for historical visualizations, is drawn on a polar coordinate grid, where each category or interval in the data is divided into equal segments on a radial chart. It is helpful when comparing data over time and proportions. What is its official name? Select all that apply. *

Coxcomb chart

Polar area diagram

Nightingale rose charts

Radar chart

Required

3) You can use a bar chart to visualize which of the following relationships? Select all that apply. *

Rank

Geospatial

Connections

Magnitude

Required

4) Have a look at the following density plot chart. True or false: The standard deviation is smaller in A than it is in B. *

True

False

Required

5) Which one of the charts below is a box and whisker plot? *

Required

6) Which of the following are true about this graph from the Financial Times? Select all that apply. *

Screenshot from FT.com

The visualization emphasizes the rate of growth (or decline) in the death toll due to the virus

The timeline is plotted on the x-axis

The y-axis is growing by a factor of 10

The visualization uses a logarithmic scale

Required

7) 100% stacked bar graphs can be used as alternatives to pie charts. True or false? *

True

False

Required

8) A value that is much higher or much lower than the other values in a set of data is known as what? *

Outlier

Mod

Median

Mean

Required

9) This is an X-Y plot of the relationship between two variables. Another name for this type of data visualization is ________________ . Select all that apply. *

Scatter graph

Point graph

Scatter chart

Scattergram

Required

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