Summary of Stat 2008 midterm  
> summary(mid) ; stem(mid);
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   2.00   26.00   40.00   42.15   60.00   98.00
 
  The decimal point is 1 digit(s) to the right of the |
 
  0 | 26
  1 | 0122467
  2 | 013666678
  3 | 1144455
  4 | 002235568
  5 | 1466
  6 | 0011567
  7 | 02556
  8 | 12
  9 | 8     Color Implication: Red: Danger; Yellow: Caution; Green: Satisfactory

> summary(mid.am2) # Summary of Sophomores  
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   2.00   23.75   34.50   38.68   56.00   82.00
> summary(mid.oth) # Summary of the others
   Min. 1st Qu.  Median    Mean 3rd Qu.    Max.
   6.00   38.00   45.00   50.93   72.50   98.00
> stem(mid.am2);stem(mid.oth)
  The decimal point is 1 digit(s) to the right of the |
 
  0 | 2
  1 | 122467
  2 | 01366678
  3 | 114455
  4 | 0026
  5 | 1466
  6 | 001167
  7 | 25
  8"| 2

  The decimal point is 1 digit(s) to the right of the |
  0 | 60
  2 | 64
  4 | 23558
  6 | 5056
  8 | 18