## Interface

normal(n:real, v^2:real) : real

Returns a drawing from a normal distribution with mean `n`

and variance `v`

.

Raises `Normal`

exception, if `v<0.0`

.

## Characteristics

- Mean:
`n`

- Variance:
`v`

Density functions for normal distributions:

## Example

normal(505.0,4.0)

A factory produces chocolate in packages of `500`

grams. The amount of chocolate in each package has a normal distribution with mean `n=505.0`

grams and variance `v=2.0`

(as `v^2=4.0`

) grams. Each package with a weight less than `500`

grams will be rejected in the control procedure.

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