Find the Mean 3 , 7 , 11 , 15

$3$ , $7$ , $11$ , $15$

Step 1

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

$\frac{3 + 7 + 11 + 15}{4}$

Step 2

Simplify the numerator.

Add $3$ and $7$ .

$\frac{10 + 11 + 15}{4}$

Add $10$ and $11$ .

$\frac{21 + 15}{4}$

Add $21$ and $15$ .

$\frac{36}{4}$

Step 3

Divide $36$ by $4$ .

$9$