How does the VAR.P function (DAX) work?

The VAR.P function (DAX) returns the variance of the entire population.

VAR.P Formula Syntax

VAR.P(
<columnName>
)

How do you use the VAR.P function?

The VAR.P function calculates variance for data that represents an entire population. Variance measures how far a data set is spread out, giving you a general idea of the spread of your data. The VAR.P function can accept up to 254 arguments

Considerations when using the VAR.P function

VAR.P assumes data represents the entire population. If data represents a sample, compute variance with VAR.S.
VAR.P only evaluates numbers in references, ignoring empty cells, text, and logical values like TRUE or FALSE.
Arguments can either be numbers or names, arrays, or references that contain numbers.
Arguments can be hard-coded values instead of references.
To evaluate logical values and/or text, use the VARPA function.