Get the daily prices for three stocks: TSLA, AMZN, NVDA (Jan 1, 2020 - July, 2020) 1) Compute daily stock returns for the three stocks. 2) Calculate the respective averages standard deviations for the daily stock returns. 3) Generate a covariance matrix with the three daily stock returns using Data Analysis Toolpak 4) Compute an equal weighted (33.3%: TSLA, 33.3%: AMZN, 33.3%: NVDA) portfolio return and risk.