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': 'In a group of 100 children, the weight of a child is 15 kg. The standard error is 1.5 kg. Which one of the following is TRUE - \nSelect and explain. \nA. 95% of all children weigh between 12 and 18 kg, B. 95% of all children weigh between 13.5 and 16.5 kg, C. 99% of all children weigh between 12 and 18 kg, D. 99% of all children weigh between 13.5 and 16.5kg', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Here the examiner himself has given us the value of standard error = 1.5\nSo, we can directly apply sample data to the population.\n95% of data will be covered by 2 standard error\xa0= 15 ± 2 SE = 12 ± 3 = 12 to 18', 'role': 'assistant'}]