What is the standard deviation (or a measure of total risk) for this portfolio?   _____%数值题

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 Suppose that the covariance between a stock and the market portfolio is 0.06 and that the standard deviation of the market portfolio is 0.30. Suppose also that the standard deviation of the stock’s returns is 0.55. Based on the CAPM, what is β of this stock? (Please answer as a number and round to 2 decimal places. If the answer is 0.768, then in the box, write 0.77)

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