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x1=10,x2=2 x1=12,x2=10 x1=12,x2=2 x1=2,x2=2
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四格表的x2值为5 四格表的较正值x2为4.5 用x2=(|b-c|-1)/(b+c)计算x2值 用x2=(b-c/b+c)计算x2值 用x2=计算x2值
x=2 x=0 x1=0, x2=2 x1=0, x2=-2
(﹣∞,1] [1,+∞) (﹣∞,2] [2,+∞)
x1=10,x2=2 x1=12,x2=10 x1=12,x2=2 x1=2,x2=2
x1=10,x2=2 x1=12,x2=10 x1=12,x2=2 x1=2,x2=2
x1=10,x2=2 x1=12,x2=10 x1=12,x2=2 x1=2,x2=2
X1 X2 (Xl,X2) (Xl,X2,X3,X4)
x1=10,x2=2 x1=12,x2=10 x1=12,x2=2 x1:2,x2=2