Question: show your formula and process Suppose the following information represents possible future returns for ATT stock next year State of Economy Probability of state of

show your formula and process
Suppose the following information represents possible future returns for ATT stock next year State of Economy Probability of state of economy .20 .20 -20 -20 .20 1.00 Rate of return if state occurs 12% 6% -10% 22% 5% 4 (2.1) What is the expected rate of return for ATT common stock? (2.2) What is the variance of the return for ATT common stock
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