a)P(C|A)=p(C and A)/p(A)=(0.55*0.4/0.55)=0.4 b)P(D|B)=P(D and B)/P(B)= (0.4*0.45/0.45)=0.4 c)P(A intersection C)= 0.55*0.4=0.22 D)P(B intersection D)=0.4*0.55=0.16 e)p ( C )=0.55*0.4+0.5*0.55=0.22+0.16 =0.38 F)P(D)=0.55*0.6+0.45*0.6=1.15+0.27=1.42
更新1:
apologies for the weird formatting. There is nothing i can do to fix it.