The score data set contains various college football scores
from early in the 2004 season. 
The first column is the visiting team, the second the visitor's score (vscore),
then the home team and their score (hscore).

a) Create a sas data set named score using the score dataset.
b) calculate the descriptive statistics of vscore and hscore
b) create the following variables
   avaerge_scrore = (vscore -hscore)/2;
   centered_hscore = hscore-mean(hscore);
   difflogs = log(vscore) - log(hscore);
c) assign proper labels
d) print first 5 obs
e) print the winning teams