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Chapter_2_exercise_solution

# Chapter_2_exercise_solution - EXERCISE ANSWER SECTION...

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EXERCISE ANSWER SECTION CHAPTER 2 DESCRIBING DATA: FREQUENCY DISTRIBUTIONS AND GRAPHIC PRESENTATION Exercise 2.1 a. Frequency bar chart for type of car rented. Relative frequency bar chart for type of car rented. b. Pie chart for type of car rented . Exercise Answer Section 158 18% 30% 25% 12% 9% 6% Luxury SUV Full-size Sub-compact Van Compact 0 200 400 600 800 1000 Sub- compact Compact Full-size Luxury SUV Van Vehicle Type Frequency Car Rentals by Vehicle Type 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 Sub- compact Compact Full-size Luxury Van Vehicle Type Relative frequency

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New Cars Sold by Manufacturer GM 34% Ford 21% Damlier Chysler 9% Toyota 9% Honda 9% Nissan 6% Other 12% c. Number of luxury cars expected to be rented next summer = 1.20 x 360 = 432 Exercise 2.2 Pie chart for new cars sold Exercise 2.3 a . Number of classes: 5 2 , 2 20, thus the number of classes is 5. k n b. Class interval is 5: 39 18 21 , 4.2, thus is > 4.2 5 5 - - = = H L i i k (round up to 5) c . Frequency distribution: Exercise Answer Section 159
Number of Miles per Gallon Tallies Engines 15 up to 20 // 2 20 up to 25 //// 4 25 up to 30 //// / 6 30 up to 35

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Chapter_2_exercise_solution - EXERCISE ANSWER SECTION...

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