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36 lines
846 B
36 lines
846 B
4 weeks ago
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# normal
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```js
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// usage
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chance.normal()
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chance.normal({mean: 100})
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chance.normal({mean: 100, dev: 15})
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```
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Return a normally-distributed random variate.
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```js
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chance.normal()
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=> 0.4244767651300604
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```
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By default this starts with a mean of `0` and a standard deviation of `1` which
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is the standard normal distribution.
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Optionally specify a mean and/or deviation.
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```js
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// Notice, since no deviation was specified, using the default of `1`
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chance.normal({mean: 100})
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=> 99.68352269988522
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// For example, to get a random IQ (which by definition has a mean of 100
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// and a standard deviation of 15)
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chance.normal({mean: 100, dev: 15})
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=> 85.11040121833615
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```
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Used in combination with the above generators, this can be an extremely powerful
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way to get more realistic results as often "pure random" results fail to
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approximate the real world.
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