This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Data Variables, Subject name: Social & Preventive Medicine
[{'content': 'Trends can be represented by - \nSelect and explain. \nA. Line diagram, B. Bar diagram, C. Scatter diagram, D. None', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Line diagramLine diagram 1 Line chart/Line graph)o It is used to show the trend of events with passage of time and shows how the frequency of a particular event or variable vary over time. DataMethodFrequency of occurrence (comparisons of magnitude)Bar ChartPie chartTrends over timeLine graphDistribution (not related to time)Histogram,Frequency polygonAssociation (Looking for correlation between two variables)Scatter diagram", 'role': 'assistant'}]