You've observed the following returns on Yasmin Corporation's stock ovet the past five years: 13 percent, - 13 percent, 20 percent, 25 percent, and 10 percent. a. What was the arithmetic average return on the company's stock over this fiveyes period? (Do not round intermediate colculotions. Enter your answer as a percent rounded to 1 decimal place, e.9,32.1. Average return b-1 What was the varance of the company's stock returns over this period? (Do not round intermediate calculations and round your answer to 5 decimal ploces, e.g. 32.16161.) Variance b-2 What was the standard deviation of the company's stock returns over this period? (Do not round intermediate calculations. Emter your onewer as a percent rounded to 2 decimel places, e.9.,32.16.) Standard deviation