Consider 5 securities: Exxon Mobil, Toyota, Este Lauder, Coca-Cola, and Disney and retrieve their returns on Yahoo!Finance (attached data set).

1. Calculate the mean, variance, and the standard deviation of each securitys annual rate of return.
2. Calculate the correlation coefficient between every possible pair of securities annual rates of return.
3. Choose percentages of your initial investment that you want to allocate amongst the five (5) securities (weights in the portfolio). Create embedded formulae which generate statistical properties of the portfolio upon insertion of the weights. Observe the mean, the standard deviation, and the CV of the annual rate of return of the portfolio.
4. Find the combination of the weights that minimizes CV of the portfolio. How the CV of the optimal portfolio compares with the CVs of its constituents. What is the expected rate of return and standard deviation of the rate of return of the portfolio?
5. Choose different values within the range of the standard deviation of the portfolio, and for each chosen value locate the corresponding point on the efficient frontier by finding the weights that maximize the expected rate of return of the portfolio. Subsequently, construct the efficient frontier of your portfolio.
6. Assume that you initially invested $1,000,000 in the portfolio and that the distribution of the annual rate of return of the portfolio is normal. What is the distribution of the return of the portfolio 20 years after its formation? Provide the graph of the distribution of the return of portfolio.

7. 	EXXON	TOYOTA	ESTE LAUDER	COCA-COLA	DISNEY
   Date	Adj Close	Adj Close	Adj Close	Adj Close	Adj Close
   7/1/2019	68.825836	125.115807	182.476944	50.537811	141.28334
   8/1/2019	63.383446	126.647636	196.148605	52.852009	136.442535
   9/1/2019	66.167549	130.389969	197.518982	52.27586	129.543869
   10/1/2019	63.318806	135.734085	184.930206	52.648392	129.146255
   11/1/2019	63.843567	137.758087	194.064026	51.652111	150.677261
   12/1/2019	66.17836	138.082291	205.559296	53.938194	143.768646
   1/1/2020	58.913719	136.412033	194.233353	56.9104	138.309998
   2/1/2020	48.784962	128.463501	182.728241	52.125637	117.650002
   3/1/2020	36.527187	117.852371	158.986572	43.121319	96.599998
   4/1/2020	44.704193	123.589996	176.008743	45.111679	108.150002
   5/1/2020	43.742195	126.010002	197.032013	45.888279	117.300003
   6/1/2020	43.854839	125.629997	188.261505	43.922199	111.510002
   7/1/2020	41.265911	119.339996	197.101852	46.860676	116.940002
   8/1/2020	39.167309	132.429993	221.228226	49.132286	131.869995
   9/1/2020	34.330002	132.440002	218.25	48.973568	124.080002
   10/1/2020	34.740002	132.080002	224.600006	50.810001	124.980003
   10/9/2020	34.740002	132.080002	224.600006	50.810001	124.980003