Advanced Excel Statistical - VARA Function

Description

The VARA function stimates variance based on a sample. In addition to numbers, text and logical values such as TRUE and FALSE are included in the calculation.

Syntax

VARA (value1, [value2] ...)

Arguments

Notes

• VARA uses the following formula −

  $$\frac{\sum \left ( x-\bar{x} \right )^2}{\left ( n-1 \right )}$$

  Where x is the sample mean AVERAGE (value1,value2,…) and n is the sample size.

• VARA assumes that its arguments are a sample of the population. If your data represents the entire population, you must compute the variance by using VARPA.

• Arguments can be the following: numbers; names, arrays, or references that contain numbers; text representations of numbers; or logical values, such as TRUE and FALSE, in a reference.

• Logical values and text representations of numbers that you type directly into the list of arguments are counted.

• Arguments that contain TRUE evaluate as 1. Arguments that contain text or FALSE evaluate as 0 (zero).

• If an argument is an array or reference, only values in that array or reference are used. Empty cells and text values in the array or reference are ignored.

• Arguments that are error values or text that cannot be translated into numbers cause errors.

• If you do not want to include logical values and text representations of numbers in a reference as part of the calculation, use the VAR function.

• If fewer than 2 numeric values have been supplied to the Function, VARA returns #DIV/0! error value.

• If any values that are supplied directly to the Function are text values that cannot be interpreted as numeric values, VARA returns #VALUE! error value.

Applicability

Excel 2007, Excel 2010, Excel 2013, Excel 2016

Example