VARA

Using the Excel VARA Function

Summary

The Excel VARA function estimates the variance based on a sample of the population and will evaluate logical and text values.

To estimate the variance for the entire population, including logical and text values, use the VARPA function.


Syntax

=VARA (value1, [value2], ...)

Syntax Breakdown

Value 1
Required. The first value that corresponds to a sample of a population.

Value 2
Value 2 and subsequent value arguments are optional. The function can accept up to 255 arguments. An array or reference to an array can also be used.


Usage Notes

VARA calculate the variance from data that is representative of a sample of a population. Unlike the VAR function, VARA will evaluate logical and text values that are included in an array or reference.

Variance is used to provide a general idea of how far a set of numbers are spread out from the average value. More formally, it is the expectation of the squared deviation of a random variable from its mean.

Logical values and text representations of numbers that are hard-coded into an argument are evaluated. If the argument or reference contains text, it will be evaluated as 0 (zero). TRUE evaluates as 1 and FALSE evaluates as 0 (zero). Empty cells are ignored.

To ignore logical and text values, use the VAR or VAR.S functions.

Excel Variance Functions
Function Data Set Text & Logical Values
VAR Sample Ignored
VARP Population Ignored
VAR.S Sample Ignored
VAR.P Population Ignored
VARA Sample Evaluated
VARPA Population Evaluated