Table 2 shows UK sales of a particular model of car over three years (figures in 100,000 units). a) Use the technique of moving averages to find values for the trend component (T). b) Plot the original data and your trend values on a scatter diagram. Question 3 Using the same data in table 2 , a) Use the technique of least squares method, find the trend line b) Find the trend values c) Forecast the sales for 2021 second quarter. d) Plot the time series data and trend line. Question 4 Using the same data in table 2 , estimate the season variation component (S). Table 2 shows UK sales of a particular model of car over three years (figures in 100,000 units). a) Use the technique of moving averages to find values for the trend component (T). b) Plot the original data and your trend values on a scatter diagram