Find the Mean 25 , 21 , 17 , 13 , 9

$25$ , $21$ , $17$ , $13$ , $9$

Step 1

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

$\frac{25 + 21 + 17 + 13 + 9}{5}$

Step 2

Simplify the numerator.

Add $25$ and $21$ .

$\frac{46 + 17 + 13 + 9}{5}$

Add $46$ and $17$ .

$\frac{63 + 13 + 9}{5}$

Add $63$ and $13$ .

$\frac{76 + 9}{5}$

Add $76$ and $9$ .

$\frac{85}{5}$

Step 3

Divide $85$ by $5$ .

$17$