Question

plz it's really urgent plz help me ..plz plz plz plz plz plz plz

Answer 1

Answer:

(i) Since Pr(A∩B)≠0, A and B are not mutually exclusive

∴ Pr(B)=Pr(A∪B)-Pr(A)+Pr(A∩B)=0.85-0.35+0.15=0.65

∴Pr(A'∩B)=Pr(B)-Pr(A∩B)=0.65-0.15=0.5

(ii) Pr(B')=1-Pr(B)=1-0.65=0.35

(iii) Pr(A∩B')=Pr(A)-Pr(A∩B)= 0.35-0.15=0.2

Hope this helps :)

Step-by-step explanation: