Susie is analyzing the stock characteristics of Chune-Best's stake.The following is the return on Chune-Best stock over the past four years:

1 year	2 year	3 year	4 year
40%	20%	30%	10%

1.Based on the above data, what is the expected annualized return on Chune-Best shares?

2.What is the standard deviation of expected return on Chune-Best stock?

3.Minsu intends to build a portfolio in which 50% of its current investment is invested in Chune-Best stocks with the characteristics shown in Question 3 and the remaining 50% in Ford Motor stocks. Ford shares are expected to average an annual return of 9%, with a standard deviation of 27%.In addition, suppose that the correlation coefficient between the two stocks is -0.15, and find the expected return and standard deviation of the portfolio Minsu is considering.