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The price of Stock A today is 50, and stock B is 100. The probability of...

The price of Stock A today is 50, and stock B is 100. The probability of a booming, normal, and recessionary economy are 0.2, 0.7, and 0.1 respectively. If the economy is booming, stock’s A price will be 65 and stock B will be 108. If the economy is normal, stock’s A price will be 55 and stock’s B will be 105. If the econ falls into recession, stock’s A price will be 40 and stock’s B will be 102.
a) Calculate the expected return and standard deviation for each stock.
b) Assume you create a portfolio and put 50% of you money in stock A and 50% of you money in stock B. Calculate the portfolio expected return and standard deviation.

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