Encyclopedia of Public Health

2008 Edition
| Editors: Wilhelm Kirch

z-Score

Reference work entry
DOI: https://doi.org/10.1007/978-1-4020-5614-7_3826
The z-score is the deviation of an individual value from the mean measured in standard deviations:
$$ z=\frac{x_i -\mu} {\sigma} \:, $$
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© Springer-Verlag 2008