Difference between revisions of "Manuals/calci/STDEVA"

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*Here  <math> n1 ,</math> is required. <math> n2,n3,..</math> are optional.  
 
*Here  <math> n1 ,</math> is required. <math> n2,n3,..</math> are optional.  
 
*Instead of numbers we can use the single array or a reference of a array.  
 
*Instead of numbers we can use the single array or a reference of a array.  
−
*<math> STDEVA </math> is defined by the formula: S.D= sqrt(summation(x-x(bar))^2/(n-1), where x(bar) is the sample mean of x and n is the total numbers in the given data.   
+
*<math> STDEVA </math> is defined by the formula:<math>S.D= \sqrt \frac {\sum(x-\bar{x})^2}{(n-1)} </math> where <math> \bar{x} </math> is the sample mean of x and n is the total numbers in the given data.   
−
*It is calculated using "n-1" method.  
+
*It is calculated using <math> "n-1" </math> method.  
 
*This function is considering our given data is the sample of the population.  
 
*This function is considering our given data is the sample of the population.  
−
*Suppose it should consider the data as the entire population, we can use the STDEVPA function.
+
*Suppose it should consider the data as the entire population, we can use the [[STDEVPA]] function.
 
*The arguments can be be either numbers or names, array,constants or references that contain numbers.  
 
*The arguments can be 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 rference.  
 
*Also we can give the text representations of numbers or logical values , like TRUE or FALSE, in a rference.  
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     1. Any one of the argument is nonnumeric.  
 
     1. Any one of the argument is nonnumeric.  
 
     2. The arguments containing the error values or text that cannot be translated in to numbers.
 
     2. The arguments containing the error values or text that cannot be translated in to numbers.
 +
 +
 +
==Examples==
 +
{| class="wikitable"
 +
|+Spreadsheet
 +
|-
 +
! !! A !! B !! C !! D!! E !!F !!G
 +
|-
 +
! 1
 +
| 208 || 428 || 511 || 634 || 116 || 589 || 907
 +
|-
 +
! 2
 +
| 18 || 25 || 76 || 91 || 107 || ||
 +
|}
 +
 +
#STDEVA(A2:E2)=39.8660256358
 +
#STDEVA(A1:G1)=267.0566196431
 +
#STDEVA(4,8,TRUE) = 3.51188458428
 +
#STDEVA(12,18,27,32,false)= 8.958236433584458
 +
 +
 +
 +
  
  

Revision as of 02:52, 25 January 2014

STDEVA(n1,n2,n3…)


  • are numbers.


Description

  • This function gives the standard deviation based on a given sample 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 , are numbers to find the standard deviation.
  • Here is required. are optional.
  • Instead of numbers we can use the single array or a reference of a array.
  • is defined by the formula: where is the sample mean of x and n is the total numbers in the given data.
  • It is calculated using Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle "n-1" } method.
  • This function is considering our given data is the sample of the population.
  • Suppose it should consider the data as the entire population, we can use the STDEVPA function.
  • The arguments can be 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 rference.
  • Suppose the arguments containing TRUE which is eveluate 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 STDEV function.
  • This function will return the result as error when
   1. Any one of the argument is nonnumeric. 
   2. The arguments containing the error values or text that cannot be translated in to numbers.


Examples

Spreadsheet
A B C D E F G
1 208 428 511 634 116 589 907
2 18 25 76 91 107
  1. STDEVA(A2:E2)=39.8660256358
  2. STDEVA(A1:G1)=267.0566196431
  3. STDEVA(4,8,TRUE) = 3.51188458428
  4. STDEVA(12,18,27,32,false)= 8.958236433584458




 

STDEVA (v1, v2...)

Where v1,v2.....are arguments.

 

In standard deviation the values are dispersed from the mean.

 
  • S D is calculated by the "n-1" method.
  • The Arguments can be numbers or names, arrays, or references.
  • Empty cells, logical values, text, or error values are ignored.

S D formula is:

Where x is the sample mean average (V1,V2........) and n is the sample size.

STDEVA

 

150

130

165

132

110

137

121

?UNIQ1c32fc5faf401929-nowiki-00000002-QINU?

Syntax
Remarks
Examples
Description
Column1 Column2 Column3 Column4
Row1 150 18.184242
Row2 130
Row3 165
Row4 132
Row5 110
Row6 137
Row7 121
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