This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostatistics, Subject name: Social & Preventive Medicine
[{'content': 'Which of the following is a measure of location? \nSelect and explain. \nA. Variance, B. Mode, C. p-value, D. Median', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The Median The median is an average of a different kind, which does not depend upon the total and number of items. To obtain the median, the data is first arranged in an ascending or descending order of magnitude, and then the value of the middle observation is located, which is called the median. Ref : Park 23rd edition Pgno : 847', 'role': 'assistant'}]