Midterm exam scores, by range and group.
                        (* = singleton group)
                         
 Range 100+                  90-100                 80-90         below 80
    Score   Grp#   Score   Grp#  Score   Grp#    Score   Grp#   Score   Grp#
    ------------   --------------------------    ------------   ------------
    103.333  01     99.167  06    95.833  12      88.333  17*    74.167  19*  
    103.333  01     99.167  06    95.833  13      87.500  30*    66.667  32*  
    103.333  03     98.333  15*   95.833  13      87.500  36*    64.167  34*  
    103.333  03     98.333  21    95.833  13      86.667  25                  
    102.500  02*    98.333  21    95.833  13      86.667  25                  
    100.833  28     98.333  21    94.167  08      86.667  25                  
    100.833  28     97.500  09*   94.167  08      86.667  25                  
    100.833  28     97.500  38    93.333  07*     85.000  18*                 
    100.833  14*    97.500  38    93.333  26*     85.000  35*                 
    101.667  10*    97.500  38    93.333  33      81.667  24*                 
    100.833  04     97.500  38    93.333  33      80.833  37*                 
    100.833  04     97.500  38    90.833  31      80.833  05*                 
    100.000  27*    95.833  16*   90.833  31      80.833  29*                 
    100.000  22*    95.833  11    90.833  31                       
    100.000  20*    95.833  11    90.833  31   
                    95.833  11    90.833  31    
                    95.833  11    90.000  23       
                    95.833  11    90.000  23     
                    95.833  12    90.000  23     
                    95.833  12