Can you please show work without using excel?

An analyst has made the following return projections for each of three possible outcomes with an equal likelihood of occurrence: Asset Outcome 1(%Outcome 2%) Outcome 3(%) Expected return (%) 1 12 6 0 6 2 12 0 6 6 3 0 6 12 6 Which pair of assets is perfectly negatively correlated? A Asset 1 and Asset 2 B Asset 1 and Asset 3 C Asset 2 and Asset 3 If the analyst constructs two-asset portfolios that are equally weighted, which pair of assets has the lowest standard deviation? A Asset 1 and Asset 2 B Asset 1 and Asset 3 C Asset 2 and Asset 3 If the analyst constructs two-asset portfolios that are equally weighted, which pair of assets pro- vides the least amount of risk reduction? A Asset 1 and Asset 2 B Asset 1 and Asset 3 C Asset 2 and Asset 3