Problem 8 (For this problem you need to consult the Excel material from Lecture 8) Pick any three stocks you like (They cannot be Tesla, GM, MGM, GS, or ^GSPC). For these three stocks, download historical monthly prices (first day of each month) for the last three years from Yahoo!Finance. i) For the three stocks you picked, calculate returns, average returns, variances, volatilities, covariances, and correlations. What do these statistics mean? ii) Construct an equal-weighted portfolio of these three stocks and calculate the returns, average return, variance, and volatility of the portfolio. Equalweighted portfolio means that you assign the same portfolio weights to each stock.