ANSWERS A-41 45. Number of Children Number of Families 0 5 1 4 2 5 3 3 4 1 5 0 6 1 7 1 46. and 47. 0 1 2 3 4 5 6 7 1 0 2 3 4 5 Number of Children Number of Families Histogram of Number of Children CHAPTER TEST, PAGE 841 7. Class Frequency 25–30 7 31–36 5 37– 42 1 43– 48 7 49–54 5 55– 60 3 61– 66 2 8. 2 4 6 1 3 5 7 Frequency Class 27.5 33.5 39.5 45.5 51.5 57.5 63.5 9. 2 4 6 1 3 5 7 Frequency Class 27.5 33.5 39.5 45.5 51.5 57.5 63.5 20. a) Time (minutes) Time Spent Studying 50 0 10 70 90 100 40 60 80 20 30 60 70 80 40 50 90 100 Grade (percent) y x Chapter 13 SECTION 13.1, PAGE 849 9. C A B D 10. A B D C 11. A B C D E F G 12. A B C D E F G H 13. B A C 14. C A B D 29. B A C D 30. A B C D 31. OR WA ID MT WY 32. GA FL SC TX LA MS AL 33. P E H N C B G 34. BF SL T B G C L
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