Question

find the mean of first nine prime numbers

Answer 1

The first nine prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23
Mean = sum of all observation/No.of observations
           = (2+3+5+7+11+13+17+19+23)/9
           = 100/9
           = 11.111 

Answer 2

First nine prime no. are -
2,3,5,7,11,13,17,19,23.
MEAN= Sum off all observation
Total no. of observation
= 2+3+5+8+11+13+17+19+23
9
= 100. = 11.11
9
HOPE ITS HELP