## GPA data ## 999 represents missing data id gender college gpa weight 1 f yes 3.6 110 2 m yes 3.5 170 3 m no 99 165 4 m no 999 190 5 f no 999 95 6 m yes 3.7 200 7 m yes 3.6 150 8 f yes 3.8 100 9 f yes 3.0 130 10 f no 999 120