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Q. Explain about Regression analysis?
Regression analysis is the statistical technique which identifies the relationship between two or more quantitative variables: a dependent variable whose value is to be predicted and an independent or explanatory variable (or variables), about that knowledge is available. Technique is used to find the equation which represents the relationship between the variables. A simple regression analysis can demonstrate that relation between an independent variable X and a dependent variable Y is linear, using simple linear regression equation Y= a + bX (where a and b are constants). Multiple regression will provide an equation which predicts one variable from two or more independent variables, Y= a + bX1+ cX2+ dX3.
1. A sporting goods company has hired a management consulting firm to analyze demand in 20 regional markets for one of its major products: a treadmill. The consultant uses data to
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