Finite Math Examples

$121$ , $121$ , $211$ , $211$ , $265$ , $265$ , $265$ , $265$ , $296$ , $296$ , $296$ , $323$ , $323$ , $323$ , $395$

Step 1

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

$\frac{121 + 121 + 211 + 211 + 265 + 265 + 265 + 265 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2

Simplify the numerator.

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Step 2.1

Add $121$ and $121$ .

$\frac{242 + 211 + 211 + 265 + 265 + 265 + 265 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.2

Add $242$ and $211$ .

$\frac{453 + 211 + 265 + 265 + 265 + 265 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.3

Add $453$ and $211$ .

$\frac{664 + 265 + 265 + 265 + 265 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.4

Add $664$ and $265$ .

$\frac{929 + 265 + 265 + 265 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.5

Add $929$ and $265$ .

$\frac{1194 + 265 + 265 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.6

Add $1194$ and $265$ .

$\frac{1459 + 265 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.7

Add $1459$ and $265$ .

$\frac{1724 + 296 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.8

Add $1724$ and $296$ .

$\frac{2020 + 296 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.9

Add $2020$ and $296$ .

$\frac{2316 + 296 + 323 + 323 + 323 + 395}{15}$

Step 2.10

Add $2316$ and $296$ .

$\frac{2612 + 323 + 323 + 323 + 395}{15}$

Step 2.11

Add $2612$ and $323$ .

$\frac{2935 + 323 + 323 + 395}{15}$

Step 2.12

Add $2935$ and $323$ .

$\frac{3258 + 323 + 395}{15}$

Step 2.13

Add $3258$ and $323$ .

$\frac{3581 + 395}{15}$

Step 2.14

Add $3581$ and $395$ .

$\frac{3976}{15}$

Step 3

Divide.

$265.0\overline{6}$

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.

$265.1$