Intermission
Congratulations! If you got this far you've
- explored the idea of probability distributions and calculated an example
- created some R functions to sample from, and evaluate your example
- conducted a real Bayesian statistical inference involving dice and blu-tack
This last example was also interesting because - although we are working on the right of this picture:

...actually all the models we tested were derived from our scientific understanding on the left. To illustrate this, consider:
Questions
How do you know that (for example) I didn't just make a mistake in writing down the numbers?
Or that I hadn't just edited the data to make it work?
Or maybe my colleague (who did some of the experiments) played a practical joke?