Statistical characteristic of a statistical datum

*x*equal to \(\dfrac {x-\overline{x}} {\sigma }\), where \(\overline{x}\) is the arithmetic mean and*σ*is the standard deviation of the statistical series.The Z-score corresponds to the number of standard deviations separating a result from the mean.

This score is one of the coordinates primarily used to assess student performance at the college level by universities.