Find the Mean 125 , 131 , 129 , 126 , 130 , 129 , 130 , 124 , 126 , 130

$125$ , $131$ , $129$ , $126$ , $130$ , $129$ , $130$ , $124$ , $126$ , $130$

Step 1

The mean of a set of numbers is the sum divided by the number of terms.

$\frac{125 + 131 + 129 + 126 + 130 + 129 + 130 + 124 + 126 + 130}{10}$

Step 2

Simplify the numerator.

Add $125$ and $131$ .

$\frac{256 + 129 + 126 + 130 + 129 + 130 + 124 + 126 + 130}{10}$

Add $256$ and $129$ .

$\frac{385 + 126 + 130 + 129 + 130 + 124 + 126 + 130}{10}$

Add $385$ and $126$ .

$\frac{511 + 130 + 129 + 130 + 124 + 126 + 130}{10}$

Add $511$ and $130$ .

$\frac{641 + 129 + 130 + 124 + 126 + 130}{10}$

Add $641$ and $129$ .

$\frac{770 + 130 + 124 + 126 + 130}{10}$

Add $770$ and $130$ .

$\frac{900 + 124 + 126 + 130}{10}$

Add $900$ and $124$ .

$\frac{1024 + 126 + 130}{10}$

Add $1024$ and $126$ .

$\frac{1150 + 130}{10}$

Add $1150$ and $130$ .

$\frac{1280}{10}$

Step 3

Divide $1280$ by $10$ .

$128$