# Manuals/calci/STDEVPA

STDEVPA()

• Parameters are set of numbers.
• STDEVPA(),calculates standard deviation based on the entire population, including numbers, text, and logical values.

## Description

• This function gives the standard deviation based on a entire population as the given data including the logical value and text .
• Standard Deviation is a quantity expressing by how much the members of a group differ from the mean value for the group.
• It is the used as a measure of the dispersion or variation in a distribution.
• It is calculated as the square root of variance.
• In  , Parameters are set of numbers to find the standard deviation.
• Here First Parameter is required. From the second Parameter are optional.
• Instead of numbers we can use the single array or a reference of a array.
• STDEVPA is defined by the formula:

where   is the sample mean of   and   is the total number in the given data.

• It is calculated using   method.
• This function is considering our given data is the entire population.
• Suppose it should consider the data as the sample of the population, we can use the STDEVA function.
• For huge sample sizes the functions   and   are approximately equal values.
• The arguments can be either numbers or names, array,constants or references that contain numbers.
• Also we can give the text representations of numbers or logical values , like TRUE or FALSE, in a reference.
• Suppose the arguments containing TRUE which is evaluate as 1, and the arguments containing FALSE which is evaluate as 0.
• Suppose the array contains the empty cells and text values like that values are not considered.
• Suppose the function don't want to consider the logical values and text representations of numbers in a reference , we can use the * STDEVP function.
• This function will return the result as error when
   1. Any one of the argument is non-numeric.
2. The arguments containing the error values or text that cannot be translated in to numbers.


## Examples

A B C D E F G
1 87 121 427 390 110 542 412
2 2 2.4 3.7 14.9 28 198 154.1
3 5 9 17 true 6 0 41
1. =STDEVPA(A1:E1) = 149.0597195757
2. =STDEVPA(A2:G2) = 76.31463871127
3. =STDEVPA(A3:D3) = 5.916079783
4. =STDEVPA(2,12,22,32,false) = 12.09297316626478

STDEVP