Last month we explored how to model a simple relationship between two variables, such as the dependence of weight on height 1. In the more realistic scenario of dependence on several variables, we can ...

Geneticists have been interested in inbreeding and inbreeding depression since the time of Darwin. Two alternative approaches that can be used to measure how inbred an individual is involve the use of ...

A procedure is described for estimating the correlation between two variables that, individually, can only be observed through destructive testing. The procedure involves proof loading a unit in one ...