3. Suppose we estimate the regression coefficients in a linear regression model by mini- mizing (yi - Bo - _ Bidis ) subject to ZIB;| S s 1= 1 i=1 for a particular value of s. Indicate which of the following is true for items in 3a-3e, as we increase s from zero to infinity, and justify your answers: . Increase initially, and then eventually start decreasing in an inverted U shape. . Decrease initially, and then eventually start increasing in a U shape. . Steadily increase. . Steadily decrease. . Remain constant. (a) Training RSS (b) Test RSS. (c) Variance. (d) (Squared) bias. (e) Irreducible error