Download weekly share price data for Starhub and Singtel over the last three years ending on 31 Dec 2020.·Calculate the weekly return for each company over this three-year period (based on discrete return)·Plot the weekly return series. Does each series have a normal distribution? Comment.·Calculate the expected weekly return and expected annual return for each company. Comment.·Calculate the standard deviation of weekly return and annual standard deviation for each company. Comment.·As a risk-averse investor, which company should you invest your money in?