What is the mean of 3,2,5,9,10,8,2,6,11,2,9,7,and 1?
The mean is the average of the numbers: which is the sum of the number divided by the amount of numbers.
(3+2+4+9+10+8+2+6+11+2+9+7+1)/13
74/13
which is approximatly 5.6923076923076923
