# DEVSQ

Returns the sum of squares of deviations of data points from their sample mean.

**Syntax**

**DEVSQ**(**number1**,number2, ...)

**Number1**,number2, ... are 1 to 30 arguments for which you want to calculate the sum of squared deviations. You can also use a single array or a reference to an array instead of arguments separated by commas.

**Remarks**

- The arguments must be numbers, or names, arrays, or references that contain numbers.
- If an array or reference argument contains text, logical values, or empty cells, those values are ignored; however, cells with the value zero are included.
- The equation for the sum of squared deviations is:

**Example**

`DEVSQ(4,5,8,7,11,4,3)`

equals 48