You’ve observed the following returns on Crash­n­Burn Computer’s stock over the past five years: 8 percent, −15 percent, 19 percent, 31 percent, and 21 percent. a. What was the arithmetic average return on the company’s stock over this five­year period? b. What was the variance of the company’s returns over this period? The standard deviation?

Marketing1. suppose the average price for a new disposable cell phone is $20, and the total market potential for that product is $4 million. topco, inc. has a planned market share of 10 percent. how many phones does topco have the potential to sell in this market? 20,0002. use the data from question 3 to calculate topco, inc.'s planned market share in dollars. $400,0003. atlantic car rental charges $29.95 per day to rent a mid-size automobile. pacific car rental, atlantic's main competitor, just reduced prices on all its car rentals. in response, atlantic reduced its prices by 5 percent. now how much does it cost to rent a mid-size automobile from atlantic? $28.45