Based on the following table, calculate the expected return and standard deviation for stock A. State of Probability of State of Economy Rate of Return If State Occurs Stock A Stock B Economy 15 Recession Normal Boom 04 09 17 17 12 27 .30 What is the expected return for stock A? Question 3 What is the standard deviation for stock A? Question 4 Given that stock X has an expected return of 8 percent, which of the following statements are true? I. If its standard deviation is positive, then the return of stock X may sometimes be above 8 percent. II. If the standard deviation is 2 percent, then the return of stock X can never go below 6 percent III. If the standard deviation is zero, then the return of stock X is always 8 percent. O A.I O B.I and lI O C.I, Il, and IlI O D.I and