The index model has been estimated from the excess returns for stock A with the following...

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The index model has been estimated from the excess returns for stock A with the following results: = RA 12.00% +1.55RM+ eA M = 24.00% (e) = 18.50% What is the standard deviation of the return for stock A? (Round your answer to 2 decimal places.) Standard deviation % The index model has been estimated from the excess returns for stock A with the following results: = RA 12.00% +1.55RM+ eA M = 24.00% (e) = 18.50% What is the standard deviation of the return for stock A? (Round your answer to 2 decimal places.) Standard deviation %