Difference between revisions of "Normal distribution"
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The normal probability density function (PDF) is | The normal probability density function (PDF) is | ||
:<math> | :<math> | ||
| − | + | f(x)=\frac{1}{\sqrt{2\pi\sigma^2}} | |
\exp\left[-\frac{1}{2\sigma^2}\left(x-\mu\right)^2\right] | \exp\left[-\frac{1}{2\sigma^2}\left(x-\mu\right)^2\right] | ||
</math> | </math> | ||
Revision as of 12:17, July 1, 2008
The normal distribution is another name for the bell curve. The normal probability density function (PDF) is
- Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle f(x)=\frac{1}{\sqrt{2\pi\sigma^2}} \exp\left[-\frac{1}{2\sigma^2}\left(x-\mu\right)^2\right] }
where Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \mu} is the mean and Failed to parse (MathML with SVG or PNG fallback (recommended for modern browsers and accessibility tools): Invalid response ("Math extension cannot connect to Restbase.") from server "https://wikimedia.org/api/rest_v1/":): {\displaystyle \sigma^2} is the variance.