Basic Math Examples

$18.56$ , $168.11$ , $28.26$ , $74.01$ , $38.35$ , $183.32$ , $15.59$ , $32.93$ , $87.11$ , $99.93$ , $50.77$

Step 1

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

$\frac{18.56 + 168.11 + 28.26 + 74.01 + 38.35 + 183.32 + 15.59 + 32.93 + 87.11 + 99.93 + 50.77}{11}$

Step 2

Simplify the numerator.

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Step 2.1

Add $18.56$ and $168.11$ .

$\frac{186.67 + 28.26 + 74.01 + 38.35 + 183.32 + 15.59 + 32.93 + 87.11 + 99.93 + 50.77}{11}$

Step 2.2

Add $186.67$ and $28.26$ .

$\frac{214.93 + 74.01 + 38.35 + 183.32 + 15.59 + 32.93 + 87.11 + 99.93 + 50.77}{11}$

Step 2.3

Add $214.93$ and $74.01$ .

$\frac{288.94 + 38.35 + 183.32 + 15.59 + 32.93 + 87.11 + 99.93 + 50.77}{11}$

Step 2.4

Add $288.94$ and $38.35$ .

$\frac{327.29 + 183.32 + 15.59 + 32.93 + 87.11 + 99.93 + 50.77}{11}$

Step 2.5

Add $327.29$ and $183.32$ .

$\frac{510.61 + 15.59 + 32.93 + 87.11 + 99.93 + 50.77}{11}$

Step 2.6

Add $510.61$ and $15.59$ .

$\frac{526.2 + 32.93 + 87.11 + 99.93 + 50.77}{11}$

Step 2.7

Add $526.2$ and $32.93$ .

$\frac{559.13 + 87.11 + 99.93 + 50.77}{11}$

Step 2.8

Add $559.13$ and $87.11$ .

$\frac{646.24 + 99.93 + 50.77}{11}$

Step 2.9

Add $646.24$ and $99.93$ .

$\frac{746.17 + 50.77}{11}$

Step 2.10

Add $746.17$ and $50.77$ .

$\frac{796.94}{11}$

Step 3

Divide $796.94$ by $11$ .

$72.44\overline{90}$

Step 4

Divide.

$72.44\overline{90}$

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.

$72.449$