# DEVSQ function: Description, Usage, Syntax, Examples and Explanation

## What is DEVSQ function in Excel?

## Syntax of DEVSQ function

DEVSQ(number1, [number2], …)

The DEVSQ function syntax has the following arguments:

- Number1, number2, … Number1 is required, subsequent numbers are optional. 1 to 255 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.

## DEVSQ formula explanation

- Arguments can either be numbers or names, arrays, or references that contain numbers.
- Logical values and text representations of numbers that you type directly into the list of arguments are counted.
- 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.
- Arguments that are error values or text that cannot be translated into numbers cause errors.
- The equation for the sum of squared deviations is:

## Example of DEVSQ function

Steps to follow:

1. Open a new Excel worksheet.

2. Copy data in the following table below and paste it in cell A1

Note: For formulas to show results, select them, press F2 key on your keyboard and then press Enter.

You can adjust the column widths to see all the data, if need be.

Data |
||

4 | ||

5 | ||

8 | ||

7 | ||

11 | ||

4 | ||

3 | ||

Formula |
Description |
Result |

=DEVSQ(A2:A8) | Sum of squares of deviations of data above from their sample mean. | 48 |