You are creating a portfolio of two stocks. the first one has a standard deviation of 20% and the second one has a standard deviation of 37%. the correlation coefficient between the returns of the two is 0.1. you will invest 43% of the portfolio in the first stock and the rest in the second stock. what will be the standard deviation of this portfolio's returns? answer in percent, rounded to two decimal places (e. g., 4.32%=4.32).

You own a nonunion company with 93 nonexempt employees. all of these employ- ees pack books into boxes for shipment to customers throughout the united states. because of wide differences in performance, you have decided to try performance appraisal, something never done before. until now, you have given every worker the same size increase. now you want to measure performance and reward the best performers with bigger increases. without any further information, which of the five types of appraisal formats do you think would be most appropriate? justify your answer. do you anticipate any complaints, or other comments, from employees after you implement your new system?