Distribution Estimate

Abstract intermediate for any numeric value carrying parametric uncertainty. Never instantiated directly - authors instantiate one of the concrete distribution-family subclasses (BetaEstimate, NormalEstimate, LogNormalEstimate, TriangularEstimate, UniformEstimate). Carries the shared properties every distribution exposes: a central tendency (estimateMean), a width (estimateStdDev), and optional explicit 95% credible interval bounds. Subclass-specific shape parameters (alpha+beta on BetaEstimate, mode on TriangularEstimate) live on the concrete subclass that uses them.