Person: Edgeworth, Francis Ysidro
Francis Edgeworth was an Irishborn statistician who examined correlation and methods of estimating correlation coefficients in a series of papers.
Mathematical Profile (Excerpt):
 Richard Lovell Edgeworth had an estate at Edgeworthstown, northwest of Dublin, and it was on this estate that Edgeworth was born.
 Francis Ysidro Edgeworth was originally named Ysidro Francis Edgeworth but transposed his forenames.
 At this stage in his life Edgeworth had no particular interest in mathematics.
 One important influence from this period was Jevons who was a friend and nearneighbour of Edgeworth.
 The surprising part is that somewhere in this varied career Edgeworth studied mathematics.
 Most of his work could be said to be applications of mathematical psychics which Edgeworth saw as analogous to mathematical physics.
 Edgeworth published Methods of Statistics in 1885 which presented an exposition of the application and interpretation of significance tests for the comparison of means.
 In 1891 Edgeworth left London to take up the Drummond Chair of Political Economy at Oxford.
 Another event of significance in 1891 was that the Economic Journal began publication with Edgeworth as its first editor.
 This journal was the publication of the Royal Economic Society which had been set up in 1890 with Edgeworth appointed as secretary to the Society.
 In 1892 Edgeworth examined correlation and methods of estimating correlation coefficients in a series of papers.
 Edgeworth's work was to influence Pearson although bad feeling developed between the two and later Pearson was to deny Edgeworth's influence.
 Whenever you see that k call to mind dear old Edgeworth.
Born 8 February 1845, Edgeworthstown, County Longford, Ireland. Died 13 February 1926, Oxford, England.
View full biography at MacTutor
Tags relevant for this person:
Origin Ireland, Statistics
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References
Adapted from other CC BYSA 4.0 Sources:
 Oâ€™Connor, John J; Robertson, Edmund F: MacTutor History of Mathematics Archive