|WikiProject Statistics||(Rated Start-class, Mid-importance)|
The Bowley citation is inexact and the reference incomplete. The citation, p.62, of the 1910 edition:
Suppose we wish to test the knowledge of a large class of students (say 100). We might by some very simple examina- tion, or by consulting the teacher, place them roughly in order of intelligence, and then examine in detail, say Nos. 1, 10, 25, 50, 75, 90, 100 (the maximum and minimum, median, quartiles and two deciles)."|' Thus a good estimate could quickly be obtained, and the relative ability of two similar classes quickly judged.
The footnote does refer to "position," but not, it seems, in a way that establishes the seven measures as "the" seven positions.
Maybe we should add a link to Cornell's university scanned exemplar?