Respuesta :

The mean of a list of numbers is asking for the sum of all the numbers divided by how many numbers there were.

12 + 15 + 3 + 11 + 9 + 4 + 10 + 4 + 2 + 11 = 81
Our sum is 81.
We have 10 numbers.

Divide our sum by how many numbers we have.

81 / 10 = 8.1

Your mean is 8.1.

I hope this helps!
mean= 8.1 hope this helps