Finite Math Examples

$13$ , $11$ , $19$ , $21$ , $8$ , $18$ , $12$

Step 1

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

$\frac{13 + 11 + 19 + 21 + 8 + 18 + 12}{7}$

Step 2

Simplify the numerator.

Tap for more steps...

Step 2.1

Add $13$ and $11$ .

$\frac{24 + 19 + 21 + 8 + 18 + 12}{7}$

Step 2.2

Add $24$ and $19$ .

$\frac{43 + 21 + 8 + 18 + 12}{7}$

Step 2.3

Add $43$ and $21$ .

$\frac{64 + 8 + 18 + 12}{7}$

Step 2.4

Add $64$ and $8$ .

$\frac{72 + 18 + 12}{7}$

Step 2.5

Add $72$ and $18$ .

$\frac{90 + 12}{7}$

Step 2.6

Add $90$ and $12$ .

$\frac{102}{7}$

Step 3

Divide.

$14.57142857$

Step 4

The mean should be rounded to one more decimal place than the original data. If the original data were mixed, round to one decimal place more than the least precise.

$14.6$