6. MATHEMATICAL BACKGROUND

The background of the 10 respondents is summarized in the following 10 three-tuples. The first entry is the number of lower division courses completed. The second entry is a Y or N depending on whether or not the student had taken the departmentÕs course Math 100: Introduction to Proof. The last entry is the number of additional upper division courses.

(1,N,0), (1,N,0), (4,Y,0), (4,Y,0), (6,Y,2), (6,Y,2), (5,Y,5), (6,Y,3), (7,Y,5), and (7,Y,6).