Total points in a board game based on the average number of hours played is predicted using the least-square regression line 9 = 280.3 + 85.7%, where y represents the total points scored and x represents the average number of hours spent playing the game. A player plays the game for an average of 3 hours and has a point
total of 550. What is the residual for the player?
03.15
03
-12.6
0-3 15
12.6

Peter applied to an accounting firm and a consulting firm. he knows that 30% of similarly qualified applicants receive job offers from the accounting firm, while only 20% of similarly qualified applicants receive job offers from the consulting firm. assume that receiving an offer from one firm is independent of receiving an offer from the other. what is the probability that both firms offer peter a job?