what is the standard deviation and the coefficient of variation of asset x and y

Assume that a new law is passed which restricts investors to holding only one asset. A risk-averse investor is considering two possible assets as the asset to be held in isolation. The assets possible returns and related possibilities (ie the probability distributions) are as follows Asset x Asset Y Pr Pr 0.10 43% 10.05 3% 0.10 2 0.10 0.25 15 0.30 5 0.25 8 0.30 8 0.30 10 0.25 10 2