2 types of data: Qualitative data & Quantitative Data
• Qualitative data:
- Categorical and non-numerical
- Mathematical operations are meaningless
• Quantitative Data:
- Mathematical operations are meaningful
- 2 types: Discrete data & Continuous Data
4 levels of measurement: Nominal, Ordinal, interval and, ratio
Classification of data
Don't just watch, practice makes perfect.
We have over 310 practice questions in Statistics for you to master.