Finite Math Examples

$5$ , $20$ , $25$ , $10$ , $5$ , $3$

Step 1

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

$\frac{5 + 20 + 25 + 10 + 5 + 3}{6}$

Step 2

Simplify the numerator.

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Step 2.1

Add $5$ and $20$ .

$\frac{25 + 25 + 10 + 5 + 3}{6}$

Step 2.2

Add $25$ and $25$ .

$\frac{50 + 10 + 5 + 3}{6}$

Step 2.3

Add $50$ and $10$ .

$\frac{60 + 5 + 3}{6}$

Step 2.4

Add $60$ and $5$ .

$\frac{65 + 3}{6}$

Step 2.5

Add $65$ and $3$ .

$\frac{68}{6}$

Step 3

Cancel the common factor of $68$ and $6$ .

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Step 3.1

Factor $2$ out of $68$ .

$\frac{2 (34)}{6}$

Step 3.2

Cancel the common factors.

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Step 3.2.1

Factor $2$ out of $6$ .

$\frac{2 \cdot 34}{2 \cdot 3}$

Step 3.2.2

Cancel the common factor.

$\frac{2 \cdot 34}{2 \cdot 3}$

Step 3.2.3

Rewrite the expression.

$\frac{34}{3}$

Step 4

Divide.

$11.\overline{3}$

Step 5

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.

$11.3$