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A portfolio is composed of two stocks, A and B. Stock A has a standard deviation of return of 24%, while stock B has a standard deviation of return of 18%. Stock A comprises 60% of the portfolio, while stock B comprises 40% of the portfolio. If the variance of return on the portfolio is .0380, (a) find the correlation coefficient between the returns of A and B. (5 points) (b) find the covariance between the returns of A and B. (4 points)