Last year, Derrick purchased 190 shares on WXYZ Corp. for $43.60. One year later, the stock prices increased to $45.80 and each share paid $1.70 in dividend. What is Derrick's total dollar return? $741 $418 $592 $323 Let's say Tim invested 55% of his money to buy ABC Corp's shares and 45% of his money to buy DEF Corp.'s shares in 2016. From 2017 to 2020, ABC Corp. generated the total return percentage of 11%,11%,12%,11.5%. DEF Corp. generated the total return percentage of 10%,22%,8%, and 19% during the same time period. What was the average rate of return for the portfolio (plain English: Tim's investment as a whole) from 2017 to 2020? 8.84% 9.85% 10.48% 11.92% Same facts as above: what is the standard deviation of the portfolio's returns from 2017 to 2020? 5.63% 8.00% 7.62% 8.28%