Notes
- Categorical variables place individuals into groups (eye color, zip code).
- Quantitative variables are numbers you can do arithmetic with (height, time).
- Quantitative variables can be discrete (countable) or continuous (measured).
Practice
Zip code is:
Averaging zip codes makes no sense.
Number of siblings is:
It's a count.
Time to run a mile is:
Measured on a continuous scale.
Ready for more? Take the Unit 1 test.