(i) Define secular trend of a time series and explain methods that are used in isolating it.

(ii) the capital budgeting officer of a small corporation whose financing requirements over the last few years have been as follows.

Year and Millions of Rupees Required are given respectively. 2012 - 2.2 $ , 2013 -1.7 $ , 2014 - 2.4$, 2015 - 2.6$, 2016 - 2.7, 2017 - 2.9, 2018 - 2.8 The trend equation that describes these data is y= 2.53+0.13 x, where 2015=0 a) Calculate the percent of trend for these data sheet. b) Calculate the relative cyclical residual for these data.