both questions apply to the same table

Questions 1 & 2 go with the following table: Terry Dactel is considering the purchase of an asset having the following cash flows: Ki Prob (K-K) (K-K) Prob (K,-K) Prob $20 0.40 $10 0.50 $30 0.10 K= What is the asset's expected return: O $11 O $10 O $15 O $20 What is the asset's standard deviation? O $11.4 O $12.0 O $13.7 O $14.1