2. Using appropriate graphical descriptive techniques (in Excel): (a) describe the movements of two data series GFCF and GDP. (b) analyse the relationship between the two variables, GFCF and GDP. (4 marks) 3. Using appropriate numerical descriptive methods (in Excel): (a) summarize the above two data series, GFCF and GDP. (b) comment on the strength and the direction of the relationship between GFCF and GDP. (4 marks) (cont.)