<prompt> Value of one parameter can be estimated from another related parameter by:-Bar chaCorrelationScatter diagramRegression  <response>: Regression: Structure of exact relationship bw two variables. Value of one variable in an individual case can be known from value of another variable. y a bx ;x independent variable ; aconstant ; 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. 