Find the Mean 45 , 39 , 33 , 27 , 21

$45$ , $39$ , $33$ , $27$ , $21$

Step 1

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

$\frac{45 + 39 + 33 + 27 + 21}{5}$

Step 2

Simplify the numerator.

Add $45$ and $39$ .

$\frac{84 + 33 + 27 + 21}{5}$

Add $84$ and $33$ .

$\frac{117 + 27 + 21}{5}$

Add $117$ and $27$ .

$\frac{144 + 21}{5}$

Add $144$ and $21$ .

$\frac{165}{5}$

Step 3

Divide $165$ by $5$ .

$33$