ud er 10 i Save You've observed the following returns on Mary Ann Data Corporation's stock over the past five years: 14 percent, -14 percent, 16 percent, 26 percent, and 10 percent. a. What was the arithmetic average return on Mary Ann's stock over this five-year period? (Do not round Interfaediate calculations and round your final answer to 2 decimal places. (e.g., 32.16) Average return b-1.What was the variance of Mary Ann's returns over this period? (Do not round Intermediate calculations and round your answer to 5 ciecimal places. (e.g. 32.16161)) Variance b. What was the standard deviation of Mary Ann's returns over this period? (Do not 2. round Intermediate calculations and round your final answer to 2 decimal places. (e.g., 32.16)) Standard deviation