1. Observations & Inferences

2. Observation
Using the five senses to gather information (data)

3. Data
Information gathered through observation

4. Types of Data Quantitative – observations that are measured or counted
Ex: 28 students, three meters long, 10 seconds
Qualitative – observations that are not easily measured
Ex: colors, rankings, descriptive

5. Examples
Usain Bolt ran the 100 meters in a world record time of 9.69 seconds.
Usain Bolt ran faster than anyone in the world.

6. Quantitative or Qualitative?
There are too many students in my last class.

7. Quantitative or Qualitative?
Justin Bieber is a great singer.

8. Quantitative or Qualitative?
Roger Maris hit 61 home runs in 1961.

9. Quantitative or Qualitative?
There are nine green cars in the parking lot

10. Inference
A logical conclusion based on observations and your prior knowledge
Allow you to make sense of what you observe