Kestrel causes of death


What is the frequency for Disease, Poison, etc? It is hard to read values off the axes.


Explain to students that 3-dimensional versions of bar and pie charts may be visually attractive and are easy to produce in Microsoft Excel but should be avoided since the information is easier to understand in a simple bar or pie chart.

Two of the diagrams are particulary misleading.

The messages under the five diagrams explain problems with them.

Kestrel cause of death
These are the causes of death of kestrels whose carcasses were sent to researchers.
Merit raises
As part of a study of how merit pay policies are tied to employee performance, data were collected about the merit raises (measured as a percentage of salary) for 3,990 employees in a large company. The diagram was actually published in a statistics textbook!
Marital status of women at first birth
These are data from the USA.
Infant deaths by abuse
Published in a New Zealand newspaper as part of an article on child abuse.