单项选择题
设表中的理赔记录用韦伯分布来拟合,用其0.2和0.7分位点估计参数γ为(),韦伯分布的分布函数为F(x )=1-e -cxγ。
A.1.31B.1.32C.1.33D.1.34E.1.35
A.25B.39C.266D.1351E.1512
A.4942.5B.4924.5C.4294.5D.4429.5E.4249.5
A.1.241B.1.356C.1.507D.1.562E.1.682
A.601.85,7.24B.6.40,1.98C.e0.70,e-1.51D.ln6.40,ln1.98E.7.24,601.85
A.Beta (4,297)B.Beta (5,300)C.Beta (5,297)D.Beta (3,297)E.Beta (4,300)
A.0.188B.0.260C.0.360D.0.288E.0.648
A.1500B.1000C.1200D.1800E.1250
A.756.02,4.83B.897.85,5.93C.905.13,6.04D.918.05,6.15E.925.10,6.30
A.0.182B.0.190C.0.210D.0.321E.0.563
A.1B.2C.3D.4E.5