The famed investor Charles Hadlock, PhD plans to invest in Stock ABC and/or Stock XYZ. He has prepared the following information to assist in the decision making:

	Expected return	Standard Deviation	Beta
Stock ABC	12%	6%	0
Stock XYZ	18%	12%	2.0

If Dr. Hadlock invests 80% of his funds in Stock ABC and the remainder in Stock XYZ, what will the standard deviation of the portfolio to be? (Format to four decimal places)