If using the method of least squares for fitting trends in an annual time series containing 36 consecutive yearly values, determine the following coded values. a. What coded value do pu assign to X for the first year in the series? b. What coded value do you assign to X for the third year in the series? c. What coded value do you assign to X for the most recent recorded year in the series? d. What coded value do you assign to X if pu want to project the trend and make a forecast four years beyond the last observed value? a. For the first year in the series, X (Simplify pur answer.)