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3 bytes added ,  05:50, 19 December 2013
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*Kurtosis is defined by:
 
*Kurtosis is defined by:
 
*Kurtosis=:
 
*Kurtosis=:
<math>\frac{n(n+1)}{(n-1)(n-2)(n-3)} \frac{\sum (xi-\bar{x})^4}{s}- \frac{3(n-1)^2}{(n-2)(n-3)}</math>, where <math>s</math> is the Sample Standard Deviation.<math>\bar{x}</math> is the Arithmetic Mean.
+
<math>\frac{n(n+1)}{(n-1)(n-2)(n-3)} \frac{\sum (x_{i}-\bar{x})^4}{s}- \frac{3(n-1)^2}{(n-2)(n-3)}</math>, where <math>s</math> is the Sample Standard Deviation.<math>\bar{x}</math> is the Arithmetic Mean.
 
*In this function arguments may be any type like numbers,names,arrays or references that contain numbers.
 
*In this function arguments may be any type like numbers,names,arrays or references that contain numbers.
 
*We can give logical values and text references also directly.
 
*We can give logical values and text references also directly.
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