Related Function:

The VAR.S function returns the variance based on a sample – ignores logical values and text in the sample.

• This function was introduced in Excel 2010 and so is not available in earlier versions.
• The VAR.S function replaces the VAR function included in earlier versions of Excel.

### Syntax

=VAR.S(num_1,[num_2], … )

#### Arguments

Argument Description
num_1 The first number, cell references or range argument corresponding to a population
[num_2], … Optional. Additional numbers, cell references or ranges for which you want the variance, up to a maximum of 255

#### Examples

A B C D
1 Data
2 1,471
3 1,474
4 1,491
5 1,452
6 1,436
7 1,445
8 1,442
9 1,427
10 1,432
11 1,407
12
13 Formula Result Notes
14 =VAR.S(A2:A11) 626.23 Variance of values provided using the VAR.S function, which assumes that 10 is only a sample population
15 =VAR.P(A2:A11) 563.61 Variance of values provided, assuming that 10 is the entire population. The result is different from VAR.S

Note: The VAR.S function is used when calculating the variance for a sample of a population. If you are calculating the variance for an entire population, you need to use the VAR.P function.

#### Common Function Error(s)

Problem What went wrong
#VALUE! Occurs if any values that are supplied directly to the function are text values that cannot be interpreted as numeric values
#DIV/0! Occurs if less than 2 numeric values have been supplied to the function

Variance is a statistical measure commonly used across a set of values, to identify the amount that the values vary from the average.

When your data set is a sample of a population, rather than an entire population, you should use a slightly modified form of variance, known as the Sample Variance.

The equation for VAR.S is:

where x is the sample mean of the set of values and n is the sample size.