1. Go to the Graph pull down menu and select Stem and Leaf. The following graphic will appear.

Select C1 by double clicking on it. It will appear in the Variables box. Hit O.K.

You will then see the following output.
Stem-and-Leaf Display: octane ratings
 

Stem-and-leaf of octane r  N  = 79
Leaf Unit = 0.10
 

    1   83 4
    2   84 3
    3   85 3
    5   86 66
   11   87 455689
   21   88 1333555569
   32   89 01335688899
  (13)  90 0003344455689
   34   91 0000001155588
   21   92 11135666
   13   93 013346
    7   94 1146
    3   95 5
    2   96 0
    1   97
    1   98
    1   99
    1  100 3
 

Notice that this is a little different then what we saw in class. There is an extra column of numbers. When you are trying to determine the numbers in the data, ignore the first column. For instance, the lowest number in this data set is 83.4 which comes from the first column of numbers. Remember to use the Leaf unit to help you revive numbers from the stem and leaf plot.