Basic Math Examples

$7.7$ , $8.3$ , $7.5$ , $6.7$ , $9$ , $8.1$

Step 1

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

$\frac{7.7 + 8.3 + 7.5 + 6.7 + 9 + 8.1}{6}$

Step 2

Simplify the numerator.

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Step 2.1

Add $7.7$ and $8.3$ .

$\frac{16 + 7.5 + 6.7 + 9 + 8.1}{6}$

Step 2.2

Add $16$ and $7.5$ .

$\frac{23.5 + 6.7 + 9 + 8.1}{6}$

Step 2.3

Add $23.5$ and $6.7$ .

$\frac{30.2 + 9 + 8.1}{6}$

Step 2.4

Add $30.2$ and $9$ .

$\frac{39.2 + 8.1}{6}$

Step 2.5

Add $39.2$ and $8.1$ .

$\frac{47.3}{6}$

Step 3

Divide $47.3$ by $6$ .

$7.88\overline{3}$

Step 4

Divide.

$7.88\overline{3}$

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.

$7.88$