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
Height and weight correlation is best represented by:- 
Select and explain. 
A. Line cha, B. Scatter diagram, C. Histogram, D. Pie cha
B: Scatter diagram
Answer: B: Scatter diagram 
Explanation: Height & weight are quantitative / continuous variables. Correlation is relationship between 2 quantitative or continuous variables. Correlation is represented by: 'Scatter diagram'/ DOT diagram. - Thus, correlation b/w height & weight is depicted by scattered / Dot diagram.