GompertzMakehamDistribution

GompertzMakehamDistribution[λ,ξ] represents a Gompertz distribution with scale parameter λ and frailty parameter ξ.

GompertzMakehamDistribution[λ,ξ,θ,α] represents a Gompertz–Makeham distribution with parameters λ, ξ, θ, and α.

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