Lean Manufacturing and Six Sigma Definitions

Glossary terms, history, people and definitions about Lean and Six Sigma

Francis Galton

Sir Francis Galton (16 February 1822 – 17 January 1911) was an English Victorian era statistician that produced over 340 papers and books, and invented the quincunx pattern, which is fundamental to the Galton Board.

He also created the statistical concept of correlation and widely promoted regression toward the mean. He was the first to apply statistical methods to the study of human differences and inheritance of intelligence, and introduced the use of questionnaires and surveys for collecting data on humans.

Galton invented the use of the regression line and for the choice of r (for reversion or regression) to represent the correlation coefficient.

On a personal note, he was knighted in 1909, and was Charles Darwin’s half-cousin.


  • Charles Darwin