Nr. 5

P(A)2,6%
P(AB)=P(A)P(B)=0,0260,12260,0032=0,032%
PA(B)=9,6%
P(AB)=P(A)P(B)=1P(A)P(B)=0,9740,12260,119=11,9%
PB(A)=P(AB)P(B)=0,00320,1226=0,00036032=0,036%

Nr. 14

a)

PE(F)=P(FE)P(E)=0,0950,113=0,84=84%

b)

PF(E)=P(FE)P(F)=0,0050,1=0,05=5%

c)

P(EF)2=0,0182=0,000324=0,032%
PE2(F)=P(FE2)P(E2)=

Nr. 21

a)