The mean of first 10 composite numbers isa)11.2b)12.2c)11.4d)none of t...
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
The mean of first 10 composite numbers isa)11.2b)12.2c)11.4d)none of t...
Finding the Mean of First 10 Composite Numbers
Composite numbers are those numbers that have more than two factors. For example, 6 is a composite number because it has factors 1, 2, 3 and 6. The first 10 composite numbers are:
4, 6, 8, 9, 10, 12, 14, 15, 16, 18
To find the mean of these numbers, we need to add them up and divide by 10 (since there are 10 numbers).
Calculating the Mean
- Add up the composite numbers: 4+6+8+9+10+12+14+15+16+18 = 112
- Divide by the number of composite numbers (10): 112/10 = 11.2
Therefore, the mean of the first 10 composite numbers is 11.2.
Answer: (a) 11.2
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