14111cwir11ans.1

# 14111cwir11ans.1 - . 93 33. 5 34. A = 1 2 3 2 3 4 3 4 5 , B...

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Fall 2011 Final Exam Review Answers 1. 80 2. \$130 3. (a) True (b) True (c) False (d) False (e) False 4. (1000 ﬁshing poles, \$25,000) 5. y = - 2 x + 16 and x = 0 6. 27 29 7. ( - 908 / 69 , - 135 / 23 , - 412 / 69) 8. 21,772,800 9. (a) 0 . 3721 *corrected 12/8/11* (b) 0 . 8413 (c) 0 . 3085 10. 1 0 1 17 0 1 - 2 4 0 0 13 - 11 11. a = 6, b = 12, c = 9 12. 8,750 13. 3 . 5265% 14. 3 cars, 5 vans, 10 buses 15. y = - 1 . 55 x +19 . 95, 2010, since | r | is very close to 1, we say the line ﬁts the data well. 16. 2,903,040 17. 5 / 11 18. Yes, No 19. (a) \$2046 . 53 (b) \$1,540 . 48 (c) \$401,922 . 96 20. 0 . 5624 21. See Video Solutions 22. x P ( X = x ) \$0 . 03 120 455 \$0 . 12 225 455 \$0 . 21 100 455 \$0 . 30 10 455 23. 0 . 3125 years 24. (a) continuous (b) inﬁnite discrete (c) ﬁnite discrete 25. 0 . 7574 26. 360,360 27. All are valid 28. y = (4 / 9) x - (1 / 3), 9 ounces 29. \$30,636 . 59 30. E ( X ) = . 38, σ = 11 . 70707, V ar ( X ) = 137 . 0556, Median= - 5, Mode= - 5 31. (a) { 8 , 10 } (b) { 2 , 4 , 6 , 12 } (c) 32. \$3,373
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Unformatted text preview: . 93 33. 5 34. A = 1 2 3 2 3 4 3 4 5 , B = 1 . 5 2 . 25 1 . 75 , C = 150 50 60 50 100 20 Ans = CAB = \$3 , 860 \$2 , 682 . 50 . Thus, the cost is \$3,860 at Factory A and \$2,682 . 50 at Factory B. 35. 19 . 0252 36. 4 servings of brand A and 0 servings of brand B. 12 ounces of leftover akes, no leftover nuts 37. See Video Solutions 38. 4,944 39. (a) S = { H 1 ,H 2 ,H 3 ,H 4 ,H 5 ,H 6 ,T 1 , T 2 ,T 3 ,T 4 ,T 5 ,T 6 } (b) E = { H 2 ,H 4 ,H 6 ,T 2 ,T 4 ,T 6 } (c) 1 / 2 40. 8 . 75 years 41. 4 / 9 42. 4 / 9 43. (a) ( 25 17-54 17 t, 39 17-4 17 t,t ) (b) (23 / 3 ,-16 / 3 ,-16 / 3) (c) No solution 44. 0 . 8...
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