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Normal distribution (view source)
Revision as of 21:59, December 11, 2008
, 21:59, December 11, 2008standard normal distribution
where
where
<math>\mu</math> is the [[mean]] and <math>\sigma^2</math> is the [[variance]].
<math>\mu</math> is the [[mean]] and <math>\sigma^2</math> is the [[variance]].
If <math>\mu=0</math> and <math>\sigma=1</math>, the distribution is called the ''standard normal distribution'', often denoted by <math>\phi</math>:
:<math>
\phi(x) = \frac{1}{\sqrt{2\pi}}
\exp(-\frac{1}{2} x^2).
</math>
[[category:Probability and Statistics]]
[[category:Probability and Statistics]]