Answers

2016-04-15T15:44:43+05:30
Factors of 12 = 1, 2 , 3 , 4 , 6 , 12

Mean = sum of all observation/total no. of observation 
          = 1+2+3+4+6+12/6
           =28/6
           = 4.66
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2016-04-15T15:47:15+05:30
Factors of 12
2,6 
3,4 
4,3 
6,2 
12,1

Mean = 1+2+3+4+6+12/6
           =28/6
           = 4.66
1 5 1