What order polynomial regression has been fit to this data?

One of the pitfalls of fitting high-order polynomial trends is that such models can yield hghly inaccurate forecasts, particularly at long horizons.Group of answer choicesTrueFalse

What type of regression is used when the response variable is modeled as an nth degree polynomial of the input feature?

Find the regression line associated with the set of points. (Round all coefficients to four decimal places.)(5, 7), (7, 11), (11, 15), (13, 3)y(x) = −0.1786x+9.9643 Graph the data and the best-fit line. (Select Update Graph to see your response plotted on the screen. Select the Submit button to grade your response.)

Say you have several differently ordered polynomial models. Which of the following statistics will best help you decide which model to use?1 pointMean-squared errorCoefficient of determinationCorrelation coefficientAlpha

One of the pitfalls of fitting high-order polynomial trends is that such models can yield hghly inaccurate forecasts, particularly at long horizons.