"Stem and Leaf" plot of final exam grades.

  The decimal point is 1 digit(s) to the right of the |

   4 | 5
   5 | 
   5 | 568888
   6 | 00134
   6 | 6688888889
   7 | 000112233333
   7 | 5555567788999
   8 | 00123333334
   8 | 55555566667888888888999
   9 | 000001333333
   9 | 5555555556888
  10 | 00000



Summary of final exam grades:

   Min. 1st Qu.  Median    Mean 3rd Qu.    Max. 
  45.00   72.00   83.00   80.84   90.00  100.00