A portfolio is composed of two stocks, A and B. Stock A has a standard deviation of return of 36%, while stock B has a standard deviation of return of 16%. The correlation coefficient between the returns on A and B is 0.30. Stock A comprises 30% of the portfolio, while stock B comprises the rest of the portfolio. What is the standard deviation of the return on this portfolio?

In each of the following, what happens to the unemployment rate? does the unemployment rate give an accurate impression of what’s happening in the labor market? a.esther lost her job and begins looking for a new one.b.sam, a steelworker who has been out of work since his mill closed last year, becomes discouraged and gives up looking for work.c.dan, the sole earner in his family of 5, just lost his $90,000 job as a research scientist. immediately, he takes a part-time job at starbucks until he can find another job in his field.