2、
!P(1)Ω={(1,1),···,(1,6),(2,1),···,(2,6),(3,1),···,(3,6),(4,1),···,(4,6),(5,1),···,(5,6),(6,1),···,(6,6)}.(i,j)%3?O#C6i!%?O#C6j(i,j=1,2,3,4,5,6).(2)Ω=(0,+∞).(3)Ω={w000,w001,w010,w011,w100,w101,w110,w111},w000%3FO@E!w110%3FE!%FE!F@E!;F2
3、(4)Ω={1,2,3,4,5,6,7,8,9,10}.(5)22&DPPF!,Ω={(x,y)
4、x+y<1},>PF!,Ω={(ρ,θ),ρ<1,0θ<2π}.O1.2A,B,C!A,B,C((1)A!BCD(2)AB!CD(3)A,B,CD(4)A,B,CD(5)A,B,CD(6)A,B,CD(7)A,B,CD(8)A,B,CPÆ68Di(i=1,2,3,··
5、·,8)%3(1),(2),···,(8);66、∪B∪C+5D7=ABC.(8)D8=AB∪BC∪CA+5D8=ABC∪ABC∪ABC∪ABC.O1.3!Aii(i=1,2,3),(A1∪A2;A2;A1∪A2∪A3;A1A2A3;A3−A2;A1∪A2;A1A2;A2∪A3;A2A3;A1A2∪A1A3∪A2A3.PA1∪A2%3F0@FQAFDA2%3%FAQÆQAFDA1∪A2∪A3%3FAQ0@FQAFDA1A2A3%3FAQQAFDA3−
7、A2%3FQG%FÆQAFD13A1∪A2=A1A2%3FAQ@QAFDA2∪A3=A2A3%31FAQ0@FÆQAFDA1A2∪A1A3∪A2A3%3FAQ0@FQAFO1.4!(1)AB=A∪B;(2)AB=∅,C⊂A,BC=∅;(3)AB∪AB=Ω;(4)A⊂B,A⊃B;(5)A−B=A−B;(6)(A∪B)C=ABC.P(1);5E!Q;HABFHA.(2)5E>BC=∅,#C⊂A,,BA
8、=∅,?CJBH(3)5E!B,B;!IBABAB:;(4)5>B;1.A!,1.A!A⊂B,$1.B!IBB⊂B,BH(5);5E!A−B=AB=A∪B,BA−B=A∩B.(6);5E!(A∪B)C=AB∪C.O1.5(A⊂B,P(A)=0.2,P(B)=0.3,((1)PA;(2)PB;(3)P(AB);(4)P(A∪B);(5)PBA;(6)P(A−B).P(1)PA=1−P(A)=1−0.2=0.8;(2)PB=1−P(B)=1−0
9、.3=0.7.(3)P(AB)=P(A)=0.2.(4)P(A∪B)=P(A)+P(B)−P(AB)=0.3.(5)PBA=P(B(Ω−A))=P(B)−P(AB)=P(B)−P(A)=0.3−0.2=0.1.(6)P(A−B)=0.O1.6P(A)=0.4,P(B)=0.25,P(A−B)=0.25,P(AB),P