


Description 



zscore: A measure describing how close members of a data set are from the mean of the data set. 
The zscore in a data set is the distance between a data point and the mean of the data set measured in standad deviations. It is also called "standard score". The zscore of a score indicates how far and in what direction that score deviates from its distribution's mean, expressed in units of its distribution's standard deviation. It is calculated by
or
Finding the zscore is especially useful when seeking to compare the relative standing of scores or values from distribution with different means and/or different standard deviations.


