Youve observed the following returns on Pine Computers stock over the past five years: 28.5 percent, 16 percent, 35 percent, 3.5 percent, and 22.5 percent.

1. What was the arithmetic average return on the stock over this five-year period?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16.

2. What was the variance of the returns over this period?

Note: Do not round intermediate calculations and round your answer to 6 decimal places, e.g., .161616.

3. What was the standard deviation of the returns over this period?

Note: Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e.g., 32.16