A researcher wants to predict the finish position ( y) using the start position (x) in a car race. For 42 drivers in a second NASCAR race held in 1997, the summary of the sample data is given below.
mean 25.5 25.5
deviation 12.27 12.27
(a).Calculate a regression equation with Y predicted by X. Show your
(b).Use the equation of the fitted line to predict Y when X is 5 .
(c). Find the coefficient of determination and give an interpretation of it in the context of the