Basic Math Examples

130

$130$ ,

140

$140$ ,

135

$135$ ,

125

$125$ ,

160

$160$ ,

175

$175$

Step 1

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

\frac{130 + 140 + 135 + 125 + 160 + 175}{6}

$\frac{130 + 140 + 135 + 125 + 160 + 175}{6}$

Step 2

Simplify the numerator.

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Step 2.1

Add

130

$130$ and

140

$140$ .

\frac{270 + 135 + 125 + 160 + 175}{6}

$\frac{270 + 135 + 125 + 160 + 175}{6}$

Step 2.2

Add

270

$270$ and

135

$135$ .

\frac{405 + 125 + 160 + 175}{6}

$\frac{405 + 125 + 160 + 175}{6}$

Step 2.3

Add

405

$405$ and

125

$125$ .

\frac{530 + 160 + 175}{6}

$\frac{530 + 160 + 175}{6}$

Step 2.4

Add

530

$530$ and

160

$160$ .

\frac{690 + 175}{6}

$\frac{690 + 175}{6}$

Step 2.5

Add

690

$690$ and

175

$175$ .

\frac{865}{6}

$\frac{865}{6}$

\frac{865}{6}

$\frac{865}{6}$

Step 3

Divide.

144.1 ¯ 6

$144.1\overline{6}$

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.

144.2

$144.2$