未知题型

A.005,u0.999,u0.75;
B.0252(6),χ0.952(20),χ0.0252(50);
C.975(15),t0.01(7),t0.95(250);
D.05(12,6),F0.025(8,20),F0.90(5,12).
【参考答案】

①2.58一3.1一0.67;②14.44910.85169.6;③一2.131 52.998 0一1.65; ④4.0......

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