Question: Which of the following statement(s) is/are true? I. In linear regression, the regression equation contains one independent variable and one dependent variable. II. In linear regression, the regression equation is written as y ′ = a + bx . III. In multiple regression, there can be several independent variables and one dependent variable. IV. In multiple regression, the regression equation is written as y ′ = a + b 1 x 1 + b 2 x 2 +...+ b k x k . A ) I, II and III only B ) I and IV only C ) II and III only D ) all are correct Steps to derive 1 In simple linear regression, the regression equation contains one independent variable x and one dependent variable y ′.2 In simple linear regression, the regression equation is written as y ′ = a + bx , where a is the y ′ - intercept and b is the slope of the line.3 In multiple regression, there are several independent variables and one dependent variable.4 In multiple regression, the regression equation is written as y ′ = a + b 1 x 1 + b 2 x 2 + ...+ b k x k , where x 1 , x 2 , x 3 , ..., x k are the independent variables.5 So, all the statements are corect.Hence the right answer is Option D Click Here To Go Back Few Other Questions - A bookstore recorded the results of the sales of books on different subjects during the fi.. A surveyor asked a group of people about what they would like to do in their free time. Th.. A group of children were asked, which is their favorite color? 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