Mean or Median

Abstract

THE article by Mr. Francis Galton in your issue of March 7, entitled “Vox Populi,” is exceedingly interesting, and the variations in the estimates of individual competitors afford an admirable instance of the advantage to be derived from the use of the weighbridge at live-stock markets in preference to buyers and sellers relying on their own judgments; but the letter raises several interesting points as to the theoretical treatment of statistical data, to two of which I should like to allude.