Basic Math Examples

$7.64$ , $7.45$ , $7.47$ , $7.5$ , $7.68$ , $7.93$ , $7.45$ , $7.1$ , $7.56$ , $7.47$ , $7.52$ , $7.47$

Step 1

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

$\frac{7.64 + 7.45 + 7.47 + 7.5 + 7.68 + 7.93 + 7.45 + 7.1 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2

Simplify the numerator.

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Step 2.1

Add $7.64$ and $7.45$ .

$\frac{15.09 + 7.47 + 7.5 + 7.68 + 7.93 + 7.45 + 7.1 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2.2

Add $15.09$ and $7.47$ .

$\frac{22.56 + 7.5 + 7.68 + 7.93 + 7.45 + 7.1 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2.3

Add $22.56$ and $7.5$ .

$\frac{30.06 + 7.68 + 7.93 + 7.45 + 7.1 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2.4

Add $30.06$ and $7.68$ .

$\frac{37.74 + 7.93 + 7.45 + 7.1 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2.5

Add $37.74$ and $7.93$ .

$\frac{45.67 + 7.45 + 7.1 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2.6

Add $45.67$ and $7.45$ .

$\frac{53.12 + 7.1 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2.7

Add $53.12$ and $7.1$ .

$\frac{60.22 + 7.56 + 7.47 + 7.52 + 7.47}{12}$

Step 2.8

Add $60.22$ and $7.56$ .

$\frac{67.78 + 7.47 + 7.52 + 7.47}{12}$

Step 2.9

Add $67.78$ and $7.47$ .

$\frac{75.25 + 7.52 + 7.47}{12}$

Step 2.10

Add $75.25$ and $7.52$ .

$\frac{82.77 + 7.47}{12}$

Step 2.11

Add $82.77$ and $7.47$ .

$\frac{90.24}{12}$

Step 3

Divide $90.24$ by $12$ .

$7.52$

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.

$7.52$