Salaries for Managers
Use this diagram to explain the structure of a data matrix:
Click any of the states on the map to select its row in the data matrix. Click on the parts of the diagram on the top right to select the column the corresponding columns of the data matrix.
Explain that most data sets can be expressed in a data matrix of this form.
Salaries for managers depend both on the type of manager and the location of the job.
This data set contains the mean salaries in 2000 for five different types of manager within each of the 48 states in continental USA, plus Washington DC. (The data were published by the US Department of Labor.)