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Which of the following most accurately describes the parameters of a generalized Pareto distribution (GPD)? A. β The scale parameter: 0 > β. The shape (tail) index: ξ, can be any real number. B. The scale parameter: β, can be any real number. The shape (tail) index: ξ, can be any real number. C. The scale parameter: 0 < β. The shape (tail) index: ξ, can be any real number. D. The scale parameter: β, which can be any real number. The shape (tail) index: ξ > 0. |