Hi, Can anyone here give me a primer on the "Weibull distribution"? I know it can be used for estimating the failure rate of things like machine parts. I'm thinking it could also be used to estimate the failure (mortality) rate of forest trees based on species, forest, soils, climate, etc.

I have been unable to find anything readable about Weibull, only a couple of books with pages and pages of mathematics - essentially useless to the common forest practitioner. Is there a "Weibull for Dummies" out there? Anybody?