Table 1.7 shows data for eight phones (Consumer Reports). The Overall Score, a measure of the overall quality for the phone, ranges from 0 to 100. Voice Quality has possible ratings of poor, fair, good, very good, and excellent. Talk Time is the manufacturer’s claim of how long the phone can be used when it is fully charged.

a. How many elements are in this data set?

b. For the variables Price, Overall Score, Voice Quality, and Talk Time, which variables are categorical and which variables are quantitative?

c. What scale of measurement is used for each variable?

Table 1.7

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TABLE 1.7 Data for Eight Phones Talk Time Brand Model Price ($) Overall Score Voice Quality (hours) AT&T CL84100 60 73 Excellent 7 Very Good Very Good Very Good Very Good Very Good Excellent AT&T TL92271 80 70 7 Panasonic 4773B 100 78 13 Panasonic 6592T 70 72 13 Uniden D2997 45 70 10 Uniden D1788 80 73 7 Vtech DS6521 60 72 7 Vtech CS6649 50 72 Very Good 7