題目:設(shè)二維隨機(jī)變量(X,Y)在區(qū)域D={(x,y)|0<x<1,0<y<2}上服從均勻分布,則對任意x∈(0,1),P{X>x}=_______.A. (1-x)2B. 2(1-x)C. 1-xD. 1-(x/2)