You have $10,000 saved up to invest for a year, and are considering stocks (S) and/or short term Treasury bills (T). The returns from both sources are judged uncertain, of course, as the following probability table indicates:

			Stocks
		-10%	0%	10%	20%
Treasury Bills	6%	0	0	0.10	0.10
	8%	0	0.10	0.30	0.20
	10%	0.10	0.10	0	0

(1) If you split your investment 40% in stock and 60% in Treasury Bills, what would be the expected return and standard deviation?

(2) Are the return of stock and bond independent?