Returns the variance of the entire population.


VARX.P(<table>, <expression>)  


Term Definition
table Any DAX expression that returns a table of data.
expression Any DAX expression that returns a single scalar value, where the expression is to be evaluated multiple times (for each row/context).

Return value

A number with the variance of the entire population.


  • VARX.P evaluates <expression> for each row of <table> and returns the variance of <expression> assuming that <table> refers to the entire population.. If <table> represents a sample of the population, then compute the variance by using VARX.S.

  • VARX.P uses the following formula:

    ∑(x - x̃)2/n

    where x̃ is the average value of x for the entire population

    and n is the population size

  • Blank rows are filtered out from columnName and not considered in the calculations.

  • An error is returned if columnName contains less than 2 non-blank rows

  • This function is not supported for use in DirectQuery mode when used in calculated columns or row-level security (RLS) rules.


The following example shows the formula for a calculated column that calculates the variance of the unit price per product, when the formula is used in the Product table

= VARX.P(InternetSales_USD, InternetSales_USD[UnitPrice_USD] –(InternetSales_USD[DiscountAmount_USD]/InternetSales_USD[OrderQuantity]))