This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Biostats, Subject name: Social & Preventive Medicine
[{'content': 'Value of one parameter can be estimated from another related parameter by:- \nSelect and explain. \nA. Bar cha, B. Correlation, C. Scatter diagram, D. Regression', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Regression: Structure of exact relationship b/w two variables. Value of one variable in an individual case can be known from value of another variable. y= a + bx ;x= independent variable ; a=constant ; b= regression coefficient]. Types of regression: Simple linear regression - y= a + bx Simple curvilinear regression - y= a + bx3 Multiple linear regression - y = a + bx1 + cx2 + dx3 Multiple curvilinear regression - y = a + bx12 + Cx2 +dx39 Simple - only 1 independent variable. Multiple - >1 independent variable. Linear - independent variable has no power . Curvilinear - Atleast one independent variable has power.', 'role': 'assistant'}]