Statistical - STDEVA Function

Description

The STDEVA function estimates standard deviation based on a sample. The standard deviation is a measure of how widely values are dispersed from the average value (the mean).

Syntax

STDEVA (value1, [value2] ...)

Arguments

Argument Description Required/ Optional
Value1

1 to 255 values corresponding to a sample of a population.

You can also use a single array or a reference to an array instead of arguments separated by commas.

 Required
Value2,... Optional

Notes

  • STDEVA uses the following formula −

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

    Where $\bar{x}$ is the sample mean AVERAGE (value1, value2…) and n is the sample size.

  • STDEVA assumes that its arguments are a sample of the population. If your data represents the entire population, you must compute the standard deviation using STDEVPA

  • The standard deviation is calculated using the "n-1" method

  • Arguments can be −

    • Numbers

    • names, arrays, or references that contain numbers

    • text representations of numbers

    • logical values, such as TRUE and FALSE, in a reference

  • 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.

  • If fewer than two numeric values are supplied to the Function, STDEVA returns the #DIV/0! Error value.

  • If any values that are supplied directly to the function are text values that cannot be interpreted as numeric values, STDEVA returns the #VALUE! Error value.

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

Applicability

Excel 2007, Excel 2010, Excel 2013, Excel 2016

Example

Stdeva Function
advanced_excel_statistical_functions.htm
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