code #   Lab Exam I scores
204301   95
204302   97.5
204303   85
204304   50
204306   89
204307   87.5
204308   92.5
204309   96
204310   100
204311   86
204312   90
204313   100
204315   80
204316   96
204317   100
204318   82.5
204319   92.5
204320   97.5
204321   92.5