Note
The folded normal distribution is in the web app only.
The folded normal distribution has the following characteristics. The distribution
parameters 
and 
come from the underlying normal distribution.
-
- CDF
-
- Mean
-
- Standard deviation
-
Fitted line for the probability plot
The middle line of the probability plot uses the following x and y coordinate
calculations.
In the table, 
and 
is the inverse CDF of the folded normal distribution with location
μ / σ and scale parameter 1.
| Scale | x coordinate | y coordinate |
|---|---|---|
| Percent | x |
 |
| Probability | x |
 |
| Score | x |
 |
and is the inverse CDF of the folded normal distribution with location
μ / σ and scale parameter 1.Notation
| Term | Description |
|---|---|
| μ | Location parameter |
| σ | Scale parameter |
 | Standard normal PDF |
