Derive the expected returns and the standard deviation of returns for the two assets above.

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Consider the case of two financial assets and three market conditions (states). The table
below gives the respective probability for each market condition and the return of each asset
in each one of them. 

                                                     Market Conditions

State Recession Normal Expansion
Probability of state 30% 40% 30%
Return of asset A -30% 20% 55%
Return of asset B -10% 70% 0%

a. Derive the expected returns and the standard deviation of returns for the two assets
above.

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