Difference between revisions of "Normal distribution"
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The '''normal distribution''' is another name for the '''[[bell curve]]'''. | The '''normal distribution''' is another name for the '''[[bell curve]]'''. | ||
| + | The normal probability density function (PDF) is | ||
| + | :<math> | ||
| + | p(x)=\frac{1}{\sqrt{2\pi\sigma^2}} | ||
| + | \exp\left[-\frac{1}{2\sigma^2}\left(x-\mu\right)^2\right] | ||
| + | </math> | ||
| + | where | ||
| + | <math>\mu</math> is the [[mean]] and <math>\sigma^2</math> is the [[variance]]. | ||
| + | |||
[[category:Probability and Statistics]] | [[category:Probability and Statistics]] | ||
Revision as of 12:11, July 1, 2008
The normal distribution is another name for the bell curve. The normal probability density function (PDF) is
- <math>
p(x)=\frac{1}{\sqrt{2\pi\sigma^2}} \exp\left[-\frac{1}{2\sigma^2}\left(x-\mu\right)^2\right] </math> where <math>\mu</math> is the mean and <math>\sigma^2</math> is the variance.