Though educated as a mathematician and physicist at Cambridge, I spent most of my life pursuing my interest in biological genetics.
My impact on mathematical statistics is a by-product of my treatises on the use of modern statistical methods in biological research.
Eventually, I assumed the position at University College in London previously held by the statistician Karl Pearson, my "foe" in an ongoing feud.
My key mathematical texts were The Design of Experiments and Statistical Methods and Scientific Inference, which included ideas such as using randomization in the design of experiments, the analysis of variance, and producing estimates of the likelihood of a parameter.
All of my statistical efforts led to my election in the Royal Society, knighthood, and an eponym associated with a "z."
Ronald Aylmer Fisher (1890 - 1962)