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: Dental
[{'content': 'The number of fluorosis cases reported during the last years in a town are 250, 320, 190, 300, 5000, 100, 260, 350, 320, and 160. The epidemiologist wants to find  out the average number of fluorosis cases reported in that town during the last 10 years. The most appropriate measure of average for this data will be: \nSelect and explain. \nA. Arithmetic mean, B. Mode, C. Median, D. Geometric mean', 'role': 'user'}, {'content': 'Answer: C \nExplanation: In the given question,\n\nIncidence of fluorosis\xa0in an area is 250, 320, 190, 300, 5000, 100, 260, 350, 320, and 160.\nAnd, incidence in ascending order is 100, 160, 190, 250, 260, 300, 320, 320, 350, 5000.\nMean = 7250/10 = 725\nMedian = Mean (average) of 5th and 6th value = (260 + 300)/2 = 280\n\nMode = 320\n\nSince extreme values (outliers) are present for incidence (20 and 5000), mean will not be an appropriate measure of\xa0central tendency,\n\n\xa0 Thus,\xa0median will be the most suitable measure of central tendency.', 'role': 'assistant'}]