Finite Math Examples

$1$ , $2$ , $5$ , $7 - 1$ , $4$ , $5$

Step 1

Subtract $1$ from $7$ .

$1, 2, 5, 6, 4, 5$

Step 2

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

$\frac{1 + 2 + 5 + 6 + 4 + 5}{6}$

Step 3

Simplify the numerator.

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Step 3.1

Add $1$ and $2$ .

$\frac{3 + 5 + 6 + 4 + 5}{6}$

Step 3.2

Add $3$ and $5$ .

$\frac{8 + 6 + 4 + 5}{6}$

Step 3.3

Add $8$ and $6$ .

$\frac{14 + 4 + 5}{6}$

Step 3.4

Add $14$ and $4$ .

$\frac{18 + 5}{6}$

Step 3.5

Add $18$ and $5$ .

$\frac{23}{6}$

Step 4

Divide.

$3.8\overline{3}$

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.

$3.8$