youve observed the following returns on crash-n

You've observed the following returns on Crash-n-Burn Computers stock over the past five years: 12 percent,-12 percent, 19 percent, 24 percent, and 10 percent a. What was the arthmetic average return on the company's stock over this five-year b-1. What was the varlance'of the company's returns over thls perlod? (Do not round b-2 What was the standard devlation of the company's returns over this perlod? (Do not perlod? (Do not round Intermedlate calculations and enter your answer as a percent rounded to 1 decimal place, e.g. 321) Intermedlate calculations and round your answer to 5 decimal places, e.g.. 16161) round Intermediate calculations and enter your answer as a percent rounded to 2 decimal places, eg. 3216) a. Average return b-1. Variance b-2. Standard deviation