Use the following information to calculate the expected return and standard deviation of a portfolio that is 30 percent invested in 3 Doors, Inc., and 70 percent invested in Down Co.: (Do not round intermediate calculations. Enter your answers as a percent rounded to 2 decimal places.)

		3 Doors, Inc.			Down Co.
Expected return, E(R)		18	%		11	%
Standard deviation,		38			40
Correlation				.23

HELP FIND STANDARD DEVIATION