BHP Billiton Siemens Nestl LVMH Toronto Dominion Bank Samsung BP BHP Billiton 1.00 0.36 0.05 0.39 0.57 0.49 0.46 Siemens 1.00 0.28 0.14 0.14 0.32 0.10 Nestl 1.00 0.07 0.08 0.00 0.08 LVMH 1.00 0.35 0.53 0.06 Toronto Dominion Bank 1.00 0.20 0.32 Samsung 1.00 0.33 BP 1.00 Standard deviation (%) 25.60 26.90 9.15 18.40 20.70 29.90 22.80 a. Calculate the portfolio variance for seven different portfolios. (Use decimals, not percents, in your calculations. Do not round intermediate calculations. Enter your answers as a decimal rounded to 5 places. )