Finite Math Examples

$9$ , $15$ , $11$ , $11$ , $9$ , $15$ , $5$ , $16$

Step 1

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

$\frac{9 + 15 + 11 + 11 + 9 + 15 + 5 + 16}{8}$

Step 2

Simplify the numerator.

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Step 2.1

Add $9$ and $15$ .

$\frac{24 + 11 + 11 + 9 + 15 + 5 + 16}{8}$

Step 2.2

Add $24$ and $11$ .

$\frac{35 + 11 + 9 + 15 + 5 + 16}{8}$

Step 2.3

Add $35$ and $11$ .

$\frac{46 + 9 + 15 + 5 + 16}{8}$

Step 2.4

Add $46$ and $9$ .

$\frac{55 + 15 + 5 + 16}{8}$

Step 2.5

Add $55$ and $15$ .

$\frac{70 + 5 + 16}{8}$

Step 2.6

Add $70$ and $5$ .

$\frac{75 + 16}{8}$

Step 2.7

Add $75$ and $16$ .

$\frac{91}{8}$

Step 3

Divide.

$11.375$

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.

$11.4$