This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Statistical Graphs, Correlation, Locations, Subject name: Social & Preventive Medicine
[{'content': 'Interpret the Statistical graph given below:- \nSelect and explain. \nA. Positive correlation, B. Negative correlation, C. Absent correlation, D. Spurious correlation', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Scatter Diagram /Dot diagram - Used in depiction of correlation (Relation B/W two quantitative variable) Positive correlation : 0 > r > +1 (+1 is perfectly positive/ strong correlation) Negative correlation: -1 < r < 0 (-1 is perfectly negative correlation) No correlation r = 0 EXTRA EDGE: - Pearson product-moment correlation is used for ratio/interval scale data - Spearman rank-order correlation is used forordinal scale data', 'role': 'assistant'}]