Assume that you are considering selecting assets from among the following two candidates: State of Nature Probability of State of Nature Return Asset alpha Return Asset beta.

state nature of	probability of state nature	return asset aplha	return asset beta
i	0.25	14	2
ii	0.25	6	6
iii	0.5	10	4

(a) Calculate the standard deviation of each separate investment. (b) Find the composition and standard deviation of the portfolio that has minimum risk.