XY Corporation would like to borrow yen () and dinar (SDD) for a five-month period. XY would like to determine the expected financing rate and the variance of a portfolio consisting of 30% yen and 70% dinar. XY has gathered the following information:

Mean effective financing rate of yen for five months	4%
Mean effective financing rate of dinar for five months	1%
Standard deviation of yen's effective financing rate	.10
Standard deviation of dinar's effective financing rate	.20
Correlation coefficient of effective financing rates of these two currencies	.23

What is the expected standard deviation of the portfolio of XY company?