How do you get the 169 and 361 in the variance

rev10-121)-Protected Viw-Saved to this PC n Layout ReterencesMailings Review View Help Tell me what you want to do internet can contain viruses. Unless you need to edit, it's safer to stay in Protected View. Enable Editing Consider the following: Rel Auto Scenario Probability void Portfolio (70% auto, 30% gold) Recession 1/3 Normal Boom 1/3 1/3 8 +20 7 (-8)+ 3 (20) 4 +5 +3.7 (5)+ 3 (3) 4.4 +18 -20 7 18)+3 (-20) 6.6 Expected Return Auto (-8+5+18)3-5% Gold (+20+3-20)/3 1% Portfolio (+4+4.4+6.6y3 3.8% Variance Auto (169+0+169)/3-1 12.7 (Std. 10.6%) Gold (361 +4+441%3-268.7 (Std. 16.496) Portfolio (11.56+ .36+7.84)3 -6.59 (std. 2.6%) Show the expected return, variance and standard deviation of a 70% auto, 30% gold portfolio. Chapter 12 OLL F8 F9 F10 F11F o F10F1