Basic Math Examples

$247$ , $287$ , $198$ , $208$ , $218$ , $136$ , $172$ , $184$ , $151$

Step 1

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

$\frac{247 + 287 + 198 + 208 + 218 + 136 + 172 + 184 + 151}{9}$

Step 2

Simplify the numerator.

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Step 2.1

Add $247$ and $287$ .

$\frac{534 + 198 + 208 + 218 + 136 + 172 + 184 + 151}{9}$

Step 2.2

Add $534$ and $198$ .

$\frac{732 + 208 + 218 + 136 + 172 + 184 + 151}{9}$

Step 2.3

Add $732$ and $208$ .

$\frac{940 + 218 + 136 + 172 + 184 + 151}{9}$

Step 2.4

Add $940$ and $218$ .

$\frac{1158 + 136 + 172 + 184 + 151}{9}$

Step 2.5

Add $1158$ and $136$ .

$\frac{1294 + 172 + 184 + 151}{9}$

Step 2.6

Add $1294$ and $172$ .

$\frac{1466 + 184 + 151}{9}$

Step 2.7

Add $1466$ and $184$ .

$\frac{1650 + 151}{9}$

Step 2.8

Add $1650$ and $151$ .

$\frac{1801}{9}$

Step 3

Divide.

$200.\overline{1}$

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.

$200.1$