The following data shows the quarterly number of passengers who used KQ airplanes in 3 consecutive years; 2 Quarter 1 2 3 4 2014 2.2 5.0 7.9 3.2 2015 2.9 5.2 8.2 3.8 2016 3.2 5.8 9.1 4.1 i) Compute the 4 point moving averages and center them (6 marks) ii) Draw the time series graph and superimpose the trend line