Answers

2016-03-13T14:49:07+05:30
First 5 Composite Numbers are 4,6,8,9,10
Mean = Sum of Observation / No. Of Observation
          = (4 + 6 + 8 + 9 + 10)/5
          = 37 / 5
          = 7.4

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2016-03-13T14:51:58+05:30
First 5 composite numbers are 4,6,8,9,10
mean=sum of observations/total no of observations
         =37/5
         =7.4
1 5 1