Question 5.31

1. Table 5.11 shows a small part of a dataset that describes the fuel economy (in miles per gallon) of 2014 model motor vehicles.

  1. What are the individuals in this dataset?
  2. For each individual, what variables are given?
  3. For which of these variables would a histogram be helpful? (That is, which variables do not yield categorical data?)
Table 5.28: Table 5.11 Data on 2014 Model Cars
Make and
Model		 Vehicle
Type		 Transmission
Type		 Number of
Cylinders		 City
mpg		 Highway
mpg
Mazda MX-5 Two-seater Manual 4 22 28
Toyota Yaris Subcompact Automatic 4 30 36
Honda Accord Large car Automatic 6 21 34
Jaguar XF Midsize car Automatic 8 15 23

1.

(a) Vehicle makes and models (i.e., the four cars)

(b) Vehicle type, transmission type, number of cylinders, city mpg, and highway mpg

(c) Cylinders (maybe) and city mpg and highway mpg (certainly)