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Variations of the Normal Distribution

Move the sliders for the mean μ and the standard deviation σ to
see how the normal distribution curve, i.e. the bell curve changes.

This is a Java Applet created using GeoGebra from www.geogebra.org - it looks like you don't have Java installed, please go to www.java.com

The values x = μ + σ and x = μ - σ are where the curvature of the
bell curve changes from down to up. The bell curve curves
downward on interval containing the mean, but it curves upward
outside of this interval.

Updated October 9, 2013

Created by David Gurney using GeoGebra