2. (10 pts) The coleman data set in the robustbase library lists summary statistics for 20 different schools in the northeast US. The six variables measured on each school include demographic information (such as percent of white-collar fathers (fatherWc), mean mother's educational level (motherLev), and socioeconomic status composite deviation (sstatus)) and characteristics of each school (such as staff salaries per pupil (salaryP), mean teacher's verbal test score (teacherSc), verbal mean test score (Y, a