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': 'The best method to show the association between height and weight of children in a class is by- \nSelect and explain. \nA. Bar cha, B. Line diagram, C. Scatter diagram, D. Histogram', 'role': 'user'}, {'content': "Answer: C \nExplanation: - scatter maps show the relationship between two variables - if dots cluster round a straight line, it shows evidence of relationship of a linear nature. If there is no such cluster, it is probable that there is no relationship between the variables. Reference : Park's textbook of preventive and social medicine, 23rd edition, pg no:847", 'role': 'assistant'}]