
### Instruction: help me answer this question P(A∪B) is the probability of passing at least one of the examinations. If P(A) = 0.8, P(B) = 0.7, and P(A∪B) = 0.95, find P(A∩B)., think step by step
### Assistant: We know that, P(A∪B) = P(A) + P(B) – P(A∩B), therefore, P(A∩B) = P(A) + P(B) – P(A∪B) = 0.8 + 0.7 - 0.95 = 0.55 , The answer is 0.55
