1. Types of Data

2. Data Sets

3. Definitions
Qualitative Variables = Classify individuals into categories
Quantitative Variables = Tell how much or how many of something there is

4. 1. Classify the variable as qualitative or quantitative
Hair color

5. 2. Classify the variable as qualitative or quantitative
Number of pets

6. 3. Classify the variable as qualitative or quantitative
Social Security Number

7. 4. Classify the variable as qualitative or quantitative
Assessed value of a car

8. Definitions
Ordinal Variables = Qualitative variables whose categories have a natural ordering
Nominal Variables = Qualitative variables whose categories have no natural ordering

9. Definitions
Discrete Variables = Quantitative variables whose possible values can be listed. The list may be infinite. “No Decimals”
Continuous Variables = Quantitative variables that can take on any value in some interval. The possible values of a continuous variable are not restricted to any list. “Can Have Decimals”

10. Amt of oil in a car at any given time
5. Determine whether the quantitative variables is discrete or continuous
Amt of oil in a car at any given time

11. Number of deer in a forest
6. Determine whether the quantitative variables is discrete or continuous
Number of deer in a forest

12. 7. Determine whether the quantitative variables is discrete or continuous
Age of a Student

13. Temperature of the water in a swimming pool
8. Determine whether the quantitative variables is discrete or continuous
Temperature of the water in a swimming pool