An investor creates an investment portfolio from stock A and stock B where she invests 0.5 of

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An investor creates an investment portfolio from stock A and stock B where she invests 0.5 of her wealth in stock A and 0.5 of her wealth in stock B. Stock A has a beta of 1.39 and stock B has a beta of -0.27. What is the beta of this portfolio? Round your final answer to two decimal points.