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.