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Probability mass function of a roll of 3d6 and probability density function of the normal distribution with the same mean and standard deviation.

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standard deviation & bell curves. Some people do not think of this anymore. They expect everyone to be at the top.

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Math Monday: Make a Marble Run

If I ever make a marble run (admittedly, not terribly likely), this will be the one I model it after!

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The central limit theorem, explained with bunnies and dragons

Animator Shuyi Chiou and the folks at CreatureCast give an adorable introduction to the central limit theorem – an important concept in probability theory that can reveal normal distributions (i.e. bell curves) across data that does not appear to fit a normal distribution curve.

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Normal Distribution for Six Sigma Analysis

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