Some days ago the Australian Bureau of Statistics ABS has published an e-Magazine about important statistical terms: Statistical language! This is an “educational resource designed to improve the reader’s understanding of some fundamental statistical concepts”.
There are not only definitions but also precious explanations about how to calculate and about benefits and downfalls related to these concepts.
Filed under: 01 New on the Web, 033 Statistical literacy, Australia

Now it should work again.
The full link:
http://www.abs.gov.au/AUSSTATS/abs@.nsf/mf/1332.0.55.002