1. calculate the roi of an investment that you purchased
at $5,382 and sold at $7,129.

Stocks a, b, and c are similar in some respects: each has an expected return of 10% and a standard deviation of 25%. stocks a and b have returns that are independent of one another; i.e., their correlation coefficient, r, equals zero. stocks a and c have returns that are negatively correlated with one another; i.e., r is less than 0. portfolio ab is a portfolio with half of its money invested in stock a and half in stock b. portfolio ac is a portfolio with half of its money invested in stock a and half invested in stock c. which of the following statements is correct? a. portfolio ab has a standard deviation that is greater than 25%.b. portfolio ac has an expected return that is less than 10%.c. portfolio ac has a standard deviation that is less than 25%.d. portfolio ab has a standard deviation that is equal to 25%.e. portfolio ac has an expected return that is greater than 25%.

Differentiate between the trait, behavioral, and results-based performance appraisal systems, providing an example where each would be most applicable.

Before you started applying for college, a job recruiter offered you a full-time cashier position at a doctor's office, earning an after-tax salary of $22,000 per year. however, you turn down this offer and attend your first year of college. the additional monetary cost of college to you, including tuition, supplies, and additional housing expenses, is $34,000. you decide to go to college, probably because