You find a certain stock that had returns of 14 percent, −11 percent, 21 percent, and 22 percent for four of the last five years. The average return of the stock over this period was 12 percent. What was the stock’s return for the missing year? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e. g., 32.16.)
Stock’s return %
What is the standard deviation of the stock’s returns? (Do not round intermediate calculations and enter your answer as a percent rounded to 2 decimal places, e. g., 32.16.)
Standard deviation %

Aproduction line has three machines a, b, and c, with reliabilities of .96, .86, and .85, respectively. the machines are arranged so that if one breaks down, the others must shut down. engineers are weighing two alternative designs for increasing the line’s reliability. plan 1 involves adding an identical backup line, and plan 2 involves providing a backup for each machine. in either case, three machines (a, b, and c) would be used with reliabilities equal to the original three. a. compute overall system reliability under plan 1. (round your intermediate calculations and final answer to 4 decimal places.) reliability b. compute overall system reliability under plan 2. (round your intermediate calculations and final answer to 4 decimal places.) reliability c. which plan will provide the higher reliability? plan2plan1

Precision aviation had a profit margin of 6.25%, a total assets turnover of 1.5, and an equity multiplier of 1.8. what was the firm's roe? a. 15.23%b. 16.03%c. 16.88%d. 17.72%e. 18.60%

In january, knox company requisitions raw materials for production as follows: job 1 $915, job 2 $1,590, job 3 $771, and general factory use $704. during january, time tickets show that the factory labor of $6,300 was used as follows: job 1 $2,344, job 2 $1,711, job 3 $1,554, and general factory use $691. prepare the job cost sheets for each of the three jobs.