5. Choosing a Data Display
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What is the difference between quantitative and qualitative data?
Quantitative
Before classifying the data as qualitative or quantitative, let's recall the definitions of these classifications.
| Types of Data | Description | |
|---|---|---|
| Can It Be Measured? | Qualitative | Describes a category and cannot be measured or numerically compared |
| Quantitative | Has units and can be measured and numerically compared |
Let's now consider our data set.
|
shoe sizes of students in your class |
Shoe sizes are numerical measurements and can be numerically compared. Therefore, the data are quantitative.