exam2
  1.    100
  2.    100
  3.    100
  4.     89
  5.     86
  6.     85
  7.     83
  8.     74
  9.     67
 10.     60
 11.     57

   Statistics for exam2
      High grade: 100.0000
       Low grade: 57.0000
         Average: 81.9091
          Median: 85.0000
         Std Dev: 15.6362