Question
Tablet PC Comparison provides a wide variety of information about tablet computers. Their website enables consumers to easily compare different tablets using factors such as
Tablet PC Comparison provides a wide variety of information about tablet computers. Their website enables consumers to easily compare different tablets using factors such as cost, type of operating system, display size, battery life, and CPU manufacturer. A sample of 7 tablet computers is shown in the table below (Tablet PC Comparison website).
Tablet | Cost ($) | Operating System | Display Size (inches) | Battery Life (hours) | CPU Manufacturer |
Apple iPad 4 | 499 | iOS | 9.7 | 11 | Apple |
HP Envy X2 | 860 | Windows | 11.6 | 8 | Intel |
Lenovo ThinkPad Tablet | 668 | Windows | 10.1 | 10.5 | Intel |
Motorola Droid XYboard | 530 | Android | 10.1 | 9 | TI OMAP |
Samsung Ativ Smart PC | 590 | Windows | 11.6 | 7 | Intel |
Samsung Galaxy Tab | 525 | Android | 10.1 | 10 | Nvidia |
Sony Tablet S | 360 | Android | 9.4 | 8 | Nvidia |
a. How many elements are in this data set?
b. How many variables are in this data set?
c. Which variables are categorical and which variables are quantitative?
Variable | Categorical/Quantitative |
Cost ($) | SelectCategoricalQuantitativeItem 3 |
Operating System | SelectCategoricalQuantitativeItem 4 |
Display Size (inches) | SelectCategoricalQuantitativeItem 5 |
Battery Life (hours) | SelectCategoricalQuantitativeItem 6 |
CPU Manufacturer | SelectCategoricalQuantitativeItem 7 |
d. What type of measurement scale is used for each of the variables?
Variable | Measurement Scale |
Cost ($) | SelectOrdinalRatioNominalItem 8 |
Operating System | SelectOrdinalRatioNominalItem 9 |
Display Size (inches) | SelectOrdinalRatioNominalItem 10 |
Battery Life (hours) | SelectOrdinalRatioNominalItem 11 |
CPU Manufacturer | SelectOrdinalRatioNominal |
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