Difference between revisions of "Manuals/calci/STDEVP"
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| − | <div style="font-size:30px">'''STDEVP( | + | <div style="font-size:30px">'''STDEVP()'''</div><br/> |
| − | * | + | *Parameters are set of numbers. |
| + | **STDEVP(),calculates standard deviation based on the entire population | ||
| + | |||
==Description== | ==Description== | ||
| Line 7: | Line 9: | ||
*It is the used as a measure of the dispersion or variation in a distribution. | *It is the used as a measure of the dispersion or variation in a distribution. | ||
*It is calculated as the square root of variance. | *It is calculated as the square root of variance. | ||
| − | *In <math>STDEVP( | + | *In <math>STDEVP()</math>, Parameters are set of numbers to find the Standard Deviation. |
| − | *Here | + | *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. | *Instead of numbers we can use the single array or a reference of a array. | ||
*<math> STDEVP </math> is defined by the formula: | *<math> STDEVP </math> is defined by the formula: | ||
<math>S.D= \sqrt \frac {\sum(x-\bar{x})^2}{(n-1)} </math> | <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. | 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 <math> | + | *It is calculated using <math> n </math> method. |
*This function is considering our given data as the entire population. | *This function is considering our given data as the entire population. | ||
*Suppose it should consider the data as the sample of the population, we can use the [[Manuals/calci/STDEV | STDEV ]] function. | *Suppose it should consider the data as the sample of the population, we can use the [[Manuals/calci/STDEV | STDEV ]] function. | ||
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#=STDEVP(A3:E3) = 44.58250778015 | #=STDEVP(A3:E3) = 44.58250778015 | ||
#=STDEVP(0,2,8,10,11.7,23.8,32.1,43.7) = 14.389530699435 | #=STDEVP(0,2,8,10,11.7,23.8,32.1,43.7) = 14.389530699435 | ||
| + | |||
| + | ==Related Videos== | ||
| + | |||
| + | {{#ev:youtube|nQHG12zgl7I|280|center|STDEVP}} | ||
==See Also== | ==See Also== | ||
| Line 53: | Line 59: | ||
==References== | ==References== | ||
| + | *[http://en.wikipedia.org/wiki/Standard_deviation Standard Deviation] | ||
| + | |||
| + | |||
| + | |||
| + | *[[Z_API_Functions | List of Main Z Functions]] | ||
| + | |||
| + | *[[ Z3 | Z3 home ]] | ||
Latest revision as of 17:19, 8 August 2018
STDEVP()
- Parameters are set of numbers.
- STDEVP(),calculates standard deviation based on the entire population
Description
- This function gives the standard deviation based on a entire population as the the given data .
- 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.
- is defined by the formula:
, Parameters are set of numbers to find the Standard Deviation.
is defined by the formula:where is the sample mean of x and n is the total numbers in the given data.
where 
is the sample mean of x and n is the total numbers in the given data.
- It is calculated using method.
- This function is considering our given data as the entire population.
- Suppose it should consider the data as the sample of the population, we can use the STDEV 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.
- Suppose the array contains text,logical values or empty cells, like that values are not considered.
- When we are entering logical values and text representations of numbers as directly, then the arguments are counted.
- Suppose the function have to consider the logical values and text representations of numbers in a reference , we can use the STDEVPA function.
- This function will return the result as error when
method.
and 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 | 54 | 32 |
| 2 | 2 | 2.4 | 3.7 | 14.9 | 28 | 198 | 154.1 |
| 3 | 9 | -4 | -29 | 38 | 101 | 19 | 45 |
- =STDEVP(A1:E1) = 149.0597195757
- =STDEVP(A2:G2) = 76.31463871127
- =STDEVP(A3:E3) = 44.58250778015
- =STDEVP(0,2,8,10,11.7,23.8,32.1,43.7) = 14.389530699435
Related Videos
See Also
References