Here are the stats for Exam 2:

percentiles:
------------
 Min.   :27.00  
 1st Qu.:73.00  
 Median :86.00  
 3rd Qu.:91.00  
 Max.   :98.00  

moments:
--------
 Mean   :81.03  
 SD     :13.4

stem and leaf plot:
-------------------
Decimal point is 1 place to the right of the colon
Low:   27

   4 : 777
   5 : 14
   5 : 677
   6 : 003
   6 : 678999
   7 : 00011233344
   7 : 5567889
   8 : 01112223344
   8 : 55566666777788888889999999
   9 : 000011112222222333333344444
   9 : 55678