Z-Score Formula

by Courtney Taylor
Courtney K. Taylor, Ph.D., is a professor of mathematics at Anderson University and the author of "An Introduction to Abstract Algebra."
Updated March 06, 2017
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Z-Score Formula

To convert any bell curve into a standard bell curve, we use the above formula. Let x be any number on our bell curve with mean, denoted by mu, and standard deviation denoted by sigma. The formula produces a z-score on the standard bell curve.