Hubbert’s graphical-heuristic method (1956) Cavallo’s article begins, “It is well known that M. K. Hubbert (in 1956) successfully predicted the timing (1970) of peak US oil production.

A mixture of two Weibull distributions, each representing one type of tube failure, is proposed, and a simple graphical method for estimating the parameters of the mixed Weibull distribution described ...

This paper presents theory and applications of a simple graphical method, called hazard plotting, for the analysis of multiply censored life data consisting of failure times of failed units intermixed ...