1. A real world problem is **observed**

2. A mathematical model is **devised**

3. Mathematical model is used to make **predictions** about the situation

4. **Experimental data** is collected from the real world

5. Compare **predicted** outcomes

6. Statistical tests are used to **assess** how well the model describes the real world

7. The model is **modified** if neccesary to match the **predicted outcomes** from the **experimental data**

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