Basic Math Examples

$2$ , $655$ , $885 + 19$ , $912$

Step 1

Add $885$ and $19$ .

$2, 655, 904, 912$

Step 2

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

$\frac{2 + 655 + 904 + 912}{4}$

Step 3

Simplify the numerator.

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Step 3.1

Add $2$ and $655$ .

$\frac{657 + 904 + 912}{4}$

Step 3.2

Add $657$ and $904$ .

$\frac{1561 + 912}{4}$

Step 3.3

Add $1561$ and $912$ .

$\frac{2473}{4}$

Step 4

Divide.

$618.25$

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.

$618.3$