ANSWERS A-33 Chapter 12 SECTION 12.1, PAGE 767 29. We don’t know how many of each professor’s students were surveyed. Perhaps more of Professor Fogal’s students than Professor Bond’s students were surveyed. Also, because more students prefer a teacher does not mean the teacher is better. For example, a particular teacher may be an easier grader and that may be why that teacher is preferred. 35. a) Year Average Price of a Movie Ticket Price ($) 0 2 4 6 8 10 12 2019 2020 2021 2022 2023 b) Year Average Price of a Movie Ticket Price ($) 9.1 0 9.3 9.5 9.7 9.9 10.1 10.3 10.5 10.7 2019 2020 2021 2022 2023 36. a) Year Amazon Worldwide Revenue Revenue (billions $) 150 300 450 600 2019 2020 2021 2022 SECTION 11.8, PAGE 736 47. a) 1 1 1 1 2 1 1 3 3 1 1 4 6 4 1 1 5 10 10 5 1 b) REVIEW EXERCISES, PAGE 755 23. a) T J G C J T G C G T J C C T J G b) Sample Space TJ TG TC JT JG JC GT GJ GC CT CJ CG 24. a) H 1 2 3 4 T 1 2 3 4 b) Sample Space H1 H2 H3 H4 T1 T2 T3 T4 CHAPTER TEST, PAGE 758 10. Sample Space 1 2 3 4 5 6 1 2 3 4 5 6 1 2 3 4 5 6 R1 R2 R3 R4 R5 R6 B1 B2 B3 B4 B5 B6 G1 G2 G3 G4 G5 G6 R B G
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