This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Social & Preventive Medicine
[{'content': 'If the probability of full recovery following polio is 0.3 and the probability of paial recovery is 0.4, then the total probability of full or paial recovery following polio is: \nSelect and explain. \nA. 0.12, B. 0.7, C. 1.2, D. 0.1', 'role': 'user'}, {'content': 'Answer: B \nExplanation: In case of mutually exclusive events, for example total and paial recovery, the total probability can be calculated by applying the law of addition. i.e. P (full or paial recovery)= P(full recovery)+ P(paial recovery) = 0.4+0.3=0.7 Ref: Medical biostatistics, 1st edition pg: 191', 'role': 'assistant'}]