Question: Must be done using excel: You have been given this probability distribution for the holding-period return for GM stock: State of the economy Probability HPR

Must be done using excel:

You have been given this probability distribution for the holding-period return for GM stock:

State of the economy Probability HPR

Boom .40 30%

Normal Growth .40 11%

Recession .20 -10%

What is the expected standard deviation for GM stock? (Answer: 2.21%)

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