Find the Mean 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16

$8$ , $9$ , $10$ , $11$ , $12$ , $13$ , $14$ , $15$ , $16$

Step 1

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

$\frac{8 + 9 + 10 + 11 + 12 + 13 + 14 + 15 + 16}{9}$

Step 2

Simplify the numerator.

Add $8$ and $9$ .

$\frac{17 + 10 + 11 + 12 + 13 + 14 + 15 + 16}{9}$

Add $17$ and $10$ .

$\frac{27 + 11 + 12 + 13 + 14 + 15 + 16}{9}$

Add $27$ and $11$ .

$\frac{38 + 12 + 13 + 14 + 15 + 16}{9}$

Add $38$ and $12$ .

$\frac{50 + 13 + 14 + 15 + 16}{9}$

Add $50$ and $13$ .

$\frac{63 + 14 + 15 + 16}{9}$

Add $63$ and $14$ .

$\frac{77 + 15 + 16}{9}$

Add $77$ and $15$ .

$\frac{92 + 16}{9}$

Add $92$ and $16$ .

$\frac{108}{9}$

Step 3

Divide $108$ by $9$ .

$12$