Consumer Reports evaluates products for consumers. The file CompactSUV contains the data shown in Table 1.8 for 15 compact sports utility vehicles (SUVs) from the 2018 model line (Consumer Reports website): Make—manufacturer Model—name of the model Overall score—awarded based on a variety of measures, including those in this data set Recommended—Consumer Reports recommends the vehicle or not Owner satisfaction—satisfaction on a five-point scale based on the percentage of owners who would purchase the vehicle again (– –, –, 0, +, ++). Overall miles per gallon—miles per gallon achieved in a 150-mile test trip Acceleration (0–60 sec)—time in seconds it takes vehicle to reach 60 miles per hour from a standstill with the engine idling 

a. How many variables are in the data set? 

b. Which of the variables are categorical, and which are quantitative? 

c. What percentage of these 15 vehicles are recommended? 

d. What is the average of the overall miles per gallon across all 15 vehicles? 

e. For owner satisfaction, construct a bar chart similar to Figure 1.4. 

f. Show the frequency distribution for acceleration using the following intervals: 7.0– 7.9, 8.0–8.9, 9.0–9.9, and 10.0–10.9. Construct a histogram similar to Figure 1.5.

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TABLE 1.8 Consumer Reports Data Set for 15 Compact Sports Utility Vichicles Overall Owner Overall Miles Acceleration Make Model Score Recommended Satisfaction Per Gallon (0-60) Sec Subaru Forester 84 Yes + 26 8.7 Honda CRV 83 Yes ++ 27 8.6 Toyota Rav4 81 Yes ++ 24 9.3 Nissan Yes Rogue CX-5 73 24 9.5 Mazda 71 Yes ++ 24 8.6 Kia Sportage Escape Tiguan Limited Tiguan 71 Yes 23 9.6 + Ford 69 Yes 23 10.1 Volkswagen Volkswagen 67 No 21 8.5 65 No + 25 10.3 Mitsubishi Outlander 63 No 24 10.0 Chevrolet Equinox Tucson Terrain 63 No 31 10.1 Hyundai GMC Jeep 57 No 26 8.4 57 No 22 7.2 Cherokee 55 No 22 10.9 Jeep Compass 50 No 24 9.8