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Find the mean of(0) first 10 composite numbers.() first 5 multiples of 5.(ii) all factors of 18.Ĺź) first 10 compositred (in ko) and the results are as follows: |
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Answer» 1)First 10 composite numbers are :4, 6, 8, 9, 10, 12, 14, 15, 16, 18. Mean = Sum of all observations ÷ Total no: of observations.Sum of all observations = 4 + 6 + 8 + 9 + 1 0 +12 + 1 4 +15+ 16 + 18 = 112 Total no : of observations : 10 Mean = 112 / 10 = 11.2 Mode is a no: which occurs frequently in a given set of no:s.As every no: occurs only once , there is no mode. 2)First 5 multiples of five = 5,10,15,20,25average= 5+10+15+20+25/5= 75/5= 15average = 15 |
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