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z Scores and Area Under the Curve

z Scores and Area Under the Curve

z scores are the standardized values obtained after converting a normal distribution into a standard normal distribution. A z score is measured in units of the standard deviation. The z score tells you how many standard deviations the value x is above (to the right of) or below (to the left of) the mean, μ. Values of x that are larger than the mean have positive z scores, and values of x that are smaller than the mean have negative z scores. If x equals the mean, then x has a z score of zero.

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Related Experiment Video

Updated: May 30, 2026

External Cephalic Version: Is it an Effective and Safe Procedure?

External Cephalic Version: Is it an Effective and Safe Procedure?

Published on: June 6, 2020

Using a simplified bishop score to predict vaginal delivery

Parvin Tajik¹, Patrick M Bossuyt, Ben Willem Mol

¹Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, Amsterdam, The Netherlands Department of Obstetrics and Gynecology, Academic Medical Center Amsterdam, Amsterdam, The Netherlands (Tajik) Department of Clinical Epidemiology, Biostatistics and Bioinformatics, Academic Medical Center, Amsterdam, The Netherlands (Bossuyt) Department of Obstetrics and Gynecology, Academic Medical Center, Amsterdam, The Netherlands (Willem Mol).

Obstetrics and Gynecology

|July 22, 2011

Summary

No abstract available in PubMed .

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