Warren is an investor who believes that past variability of stocks is a reasonably good estimate of future risk associated with the stocks. Warren works on creating a new portfolio and has already purchased stock A. Now he considers two other stocks, B and C. Warren collected data on the historic rates of return for all three stocks, which are presented in the following table. Complete the table by calculating standard deviations for each stock:

Year	Stock A	Stock B	Stock C
2015	30%	25%	-10%
2016	25%	30%	-5%
2017	-5%	-10%	30%
2018	-10%	-5%	25%
Average return
Estimated standard deviation

Calculate expected returns for the individual stocks in Ians portfolio as well as the expected rate of return of the entire portfolio over the three possible market conditions next year.

	The expected rate of return on Happy Dog Soaps stock over the next year is 6.31% .
	The expected rate of return on Black Sheep Broadcastings stock over the next year is .
	The expected rate of return on Ians portfolio over the next year is .