The variables are:
SAT HSRANK xi2 xi22
42.0 90.0 0 1
48.0 87.0 0 0
58.0 85.0 0 0
45.0 79.0 0 0
45.0 90.0 0 0
86.0 48.0 1 0
51.0 83.0 0 0
56.0 99.0 0 0
51.0 81.0 0 0
58.0 94.0 0 0
42.0 86.0 0 0
55.0 99.0 0 0
61.0 99.0 0 0