house  sales   area   beds  rooms    age   loc 
    1   84.0   13.8      3      7     10    A 
    2   93.0   19.0      2      7     22    B 
    3   83.1   10.0      2      7     15    B 
    4   85.2   15.0      3      7     12    B 
    5   85.2   12.0      3      7      8    B 
    6   85.2   15.0      3      7     12    B  
    7   85.2   12.0      3      7      8    B  
    8   63.3    9.1      3      6      2    B  
    9   84.3   12.5      3      7     11    B  
   10   84.3   12.5      3      7     11    B 
   11   77.4   12.0      3      7      5    A 
   12   92.4   17.9      3      7     18    C  
   13   92.4   17.9      3      7     18    C 
   14   61.5    9.5      2      5      8    C 
   15   88.5   16.0      3      7     11    C 
   16   88.5   16.0      3      7     11    C 
   17   40.6    8.0      2      5      5    C 
   18   81.6   11.8      3      7      8    B  
   19   86.7   16.0      3      7      9    A  
   20   89.7   16.8      2      7     12    C 
   21   86.7   16.0      3      7      9    A 
   22   89.7   16.8      2      7     12    C 
   23   75.9    9.5      3      6      6    B  
   24   78.9   10.0      3      6     11    A  
   25   87.9   16.5      3      7     15    A 
   26   91.0   15.1      3      7      8    B  
   27   92.0   17.9      3      8     13    B 
   28   87.9   16.5      3      7     15    A  
   29   90.9   15.0      3      7      8    B 
   30   91.9   17.8      3      8     13    B