Basic Math Examples

$129$ , $132$ , $102$ , $106$ , $94$ , $102$ , $87$ , $99$ , $170$ , $113$ , $135$ , $142$ , $86$ , $143$ , $132$ , $146$ , $144$

Step 1

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

$\frac{129 + 132 + 102 + 106 + 94 + 102 + 87 + 99 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2

Simplify the numerator.

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Step 2.1

Add $129$ and $132$ .

$\frac{261 + 102 + 106 + 94 + 102 + 87 + 99 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.2

Add $261$ and $102$ .

$\frac{363 + 106 + 94 + 102 + 87 + 99 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.3

Add $363$ and $106$ .

$\frac{469 + 94 + 102 + 87 + 99 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.4

Add $469$ and $94$ .

$\frac{563 + 102 + 87 + 99 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.5

Add $563$ and $102$ .

$\frac{665 + 87 + 99 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.6

Add $665$ and $87$ .

$\frac{752 + 99 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.7

Add $752$ and $99$ .

$\frac{851 + 170 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.8

Add $851$ and $170$ .

$\frac{1021 + 113 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.9

Add $1021$ and $113$ .

$\frac{1134 + 135 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.10

Add $1134$ and $135$ .

$\frac{1269 + 142 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.11

Add $1269$ and $142$ .

$\frac{1411 + 86 + 143 + 132 + 146 + 144}{17}$

Step 2.12

Add $1411$ and $86$ .

$\frac{1497 + 143 + 132 + 146 + 144}{17}$

Step 2.13

Add $1497$ and $143$ .

$\frac{1640 + 132 + 146 + 144}{17}$

Step 2.14

Add $1640$ and $132$ .

$\frac{1772 + 146 + 144}{17}$

Step 2.15

Add $1772$ and $146$ .

$\frac{1918 + 144}{17}$

Step 2.16

Add $1918$ and $144$ .

$\frac{2062}{17}$

Step 3

Divide.

$121.29411764$

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.

$121.3$