THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
The joint probabilities shown in a table with two rows,A₁ and A₂,and two columns,B₁ and B₂ are as follows: P(A₁ ∩ B₁) = 0.10,P(A₁ ∩ B₂) = 0.30,P(A₂ ∩ B₁) = 0.05,P(A₂ ∩ B₂) = 0.55
-What is P(B₂) ?

Question

Quizplus · Accepted Answer

To find P(B₂), add the joint probabilities of events involving B₂: P(A₁ ∩ B₂) + P(A₂ ∩ B₂) = 0.30 + 0.55 = 0.85.