The arithmetic mean of the first 10 prime numbers is ________?
- 12.7
- 12.8
- 12.9
- None of these
Explanation
First 10 prime numbers are:
2, 3, 5, 7, 11, 13, 17, 19, 23, 29
Sum = 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 = 129
Arithmetic mean = Sum / Number of terms
= 129 / 10
= 12.9
Last verified on 26-07-2026
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