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