This information is based on the two shares recording the following for the next five years Share XY 16 10 4 18 12 Share BZ 22 40 20 -10 20 Market 20 32 14 -6 20 Required a) Calculate the following for Share A, Share B and the Market. a) The mean b) Standard deviation c) The Correlation Coefficient (16 Marks) b) Using the standard deviation and the correlation coefficient comment on the riskiness of the shares, your comparison should also be relation to the market. (2 Marks) c) State and explain the importance of Just in Time (JIT) systems in inventory management (2 Marks)