Given the following probability distributions for returns on stocks A, B, and C: Probability Return Return Return State of Outcome on Stock A on Stock B M 1 0.15 20% 20% 5% 2 0.35 15% 10% 10% 3 0.35 10% 15% 15% 4 0.15 5% 5% 20% You invest $5,000 of your own money in a portfolio composing of these three stocks. (a) You take a long position of $4,000 in A, a long position of $3,000 in B, and a position of $ in C. Calculate the expected rate of return and standard deviation of your 3-srook Qorffolio.