The growth of children from early childhood through adolescence generally follows a linear pattern. Data on the heights (in inches) of children from four to nine years old were compiled and the regression line was obtained as y = 2.36x +31.5 a. Identify the independent variable and the response variable. Explain the slope m = 2.36 in terms of the problem. b. If a 6 year old had an observed height of 46.5 inches, find the residual for this 6 year old. C. Given the coefficient of determination r² = .91, interpret it in terms of the problem.

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