Finite Math Examples

$3$ , $5$ , $9$ , $12$ , $11$

Step 1

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

$\frac{3 + 5 + 9 + 12 + 11}{5}$

Step 2

Simplify the numerator.

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Step 2.1

Add $3$ and $5$ .

$\frac{8 + 9 + 12 + 11}{5}$

Step 2.2

Add $8$ and $9$ .

$\frac{17 + 12 + 11}{5}$

Step 2.3

Add $17$ and $12$ .

$\frac{29 + 11}{5}$

Step 2.4

Add $29$ and $11$ .

$\frac{40}{5}$

Step 3

Divide $40$ by $5$ .

$8$