from PHP Magazine - International Edition Issue: 05.2003
Grokking Stats
Descriptive Stats – a quick tour, their foundations, use and limitations
Jesús M. Castagnetto
Along the way we will perform some statistical analysis of our data, showing how some PEAR packages (such as PEAR::Math_Statsand PEAR::Math_Histogram) can do the heavy lifting for us, so we can concentrate on the interpretation.We will also see an example of the misapplication of statistics as a cautionary tale for the unwary.
Special Feature: You can download the complete article here (PDF, ~440 kb)