* AVEDEV
*
* Returns the average of the absolute deviations of data points from their mean.
* AVEDEV is a measure of the variability in a data set.
*
* Excel Function:
* AVEDEV(value1[,value2[, ...]])
*
* @access public
* @category…
* AVERAGE
*
* Returns the average (arithmetic mean) of the arguments
*
* Excel Function:
* AVERAGE(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* AVERAGEA
*
* Returns the average of its arguments, including numbers, text, and logical values
*
* Excel Function:
* AVERAGEA(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* COUNT
*
* Counts the number of cells that contain numbers within the list of arguments
*
* Excel Function:
* COUNT(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* DEVSQ
*
* Returns the sum of squares of deviations of data points from their sample mean.
*
* Excel Function:
* DEVSQ(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* KURT
*
* Returns the kurtosis of a data set. Kurtosis characterizes the relative peakedness
* or flatness of a distribution compared with the normal distribution. Positive
* kurtosis indicates a relatively peaked distribution. Negative…
* SKEW
*
* Returns the skewness of a distribution. Skewness characterizes the degree of asymmetry
* of a distribution around its mean. Positive skewness indicates a distribution with an
* asymmetric tail extending toward more positive values.…
* STDEV
*
* 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).
*
* Excel Function:
* STDEV(value1[,value2[, ...]])
*
*…
* STDEVA
*
* Estimates standard deviation based on a sample, including numbers, text, and logical values
*
* Excel Function:
* STDEVA(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* STDEVP
*
* Calculates standard deviation based on the entire population
*
* Excel Function:
* STDEVP(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* STDEVPA
*
* Calculates standard deviation based on the entire population, including numbers, text, and logical values
*
* Excel Function:
* STDEVPA(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* VARA
*
* Estimates variance based on a sample, including numbers, text, and logical values
*
* Excel Function:
* VARA(value1[,value2[, ...]])
*
* @access public
* @category Statistical Functions
*
* ZTEST
*
* Returns the Weibull distribution. Use this distribution in reliability
* analysis, such as calculating a device's mean time to failure.
*
*
