## Thursday, July 21, 2022

### VAR function [MS]

Estimates variance based on a sample.

## Syntax

VAR(number1,number2,...)

Number1,number2,...     are 1 to 30 number arguments corresponding to a sample of a population.

## Remarks

• VAR assumes that its arguments are a sample of the population. If your data represents the entire population, then compute the variance using VARP.

• Logical values, such as TRUE and FALSE, and text are ignored. If logical values and text must not be ignored, use the VARA function.

• VAR uses the following formula:

## Example

Suppose 10 tools stamped from the same machine during a production run are collected as a random sample and measured for breaking strength.

 St1 St2 St3 St4 St5 St6 St7 St8 St9 St10 Formula Description (Result) 1345 1301 1368 1322 1310 1370 1318 1350 1303 1299 =VAR([St1], [St2], [St3], [St4], [St5], [St6], [St7], [St8], [St9], [St10]) Variance for the breaking strength of the tools (754.2666667)

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