A class to represent Normal Distribution
An interface method for cumulative distribution function (CDF). Optionally provides a cumulative probability of a value being between two values x1 and x2.classmethod create(mean As %Double, variance As %Double) as NormalDistribution
If called with 1 argument(x1) or if the value of second argument is empty string then returns CDF value for x1. If called with two arguments, x1 and x2 then returns a probability of a value being between x1 and x2.
Creates a new object for Normal Distribution with the given mean value and variance.classmethod fi(x As %Double) as %Double
method pdf(x As %Double) as %Double
An interface method for probability distribution function (PDF). Returns PDF value for x.