What is the average of the first 10 prime numbers?

10.9 12.9 11.9 13.9

12.9

Sum of 1st 10 prime numbers = 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 = 129 Average = \(\frac{129}{10}\) = 12.9