# Ronald Fisher

**Sir Ronald Aylmer Fisher** (17 February 1890 – 29 July 1962) was a British statistician and geneticist, who is considered “the single most important figure in 20th century statistics.”

He is responsible for, popularized, or is credited with the following statistical techniques:

**Analysis of Variance (ANOVA)**– technique developed from decades of crop experiment to quantify the statistical significance of factors on the overall variation in the data.**P-value**– Fisher popularized the concept, and proposed the level p=0.05, or a 1 in 20 chance of being exceeded by chance, as a limit for statistical significance.**Design of experiments (DOE)**– principles of the design of experiments**F-distribution**– Originally called Fisher’s z-distribution, it was a new statistical method which was later called the Fisher–Snedecor (F) distribution.**Fisher’s exact test**– statistical significance test used in the analysis of a 2×2 contingency tables**Student’s t-distribution**– popularized the distribution for small samples, and called it “Student’s distribution” and represented the test value with the letter t.**Fisher’s permutation test****Fisher’s equation**– Also known as Kolmogorov-Petrovsky–Piskunov equation for partial differentials

The R. A. Fisher Lectureship is a very high recognition annual lecture prize established in 1963 in North America. It is given in recognition of achievement and scholarship in statistical science for those who have a highly significant impact of statistical methods on scientific investigations. It provides the lecturer with a plaque and a cash award of $1000 USD.

In 1998, a minor planet, 21451 Fisher, was named after him.

Influences

- Charles Darwin

Influenced

- W. Edwards Deming
- Richard Dawkins
- Dorian Shainin
- George Box
- Genichi Taguchi

Links

Books