Question

find the mean of first 10 prime numbers

Answer 1

 (2+3+5+7+11+13+17+19+23+29)/10
129/10
Its 12.9

Answer 2

the 1st 10 prime numbers are = 2 , 3 , 5 , 7 , 11 , 13 , 17 , 19 , 23 , 29 
mean = 2 + 3 + 5 + 7 + 11 + 13 + 17 + 19 + 23 + 29 / 10
= 129 / 10 
= 12.9 
therefore the mean of the 1st 10 prime numbers are 12.9 
        i hope it helps.....................^_^