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: Unknown
[{'content': 'Median weight of 100 children was 16 kgs. The standard deviation was 8.calculate the percentage coefficient of variance. \nSelect and explain. \nA. 50%, B. 35%, C. 45%, D. 55%', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Coefficient of Variation (COV)\n\n\nCOV = SD × 100\n\nMean or Median\nIs SD expressed as percentage of mean OR median.\n\nCV = SD / MEAN × 100 = 8/16 × 100 = 50%', 'role': 'assistant'}]