Imagine that you trained a regression model to predict the final exam results. The table below contains the score that students received, as well as the ones predicted by your model:
| Real score | Predicted score |
|---|---|
| 95 | 92 |
| 60 | 55 |
| 70 | 70 |
| 80 | 81 |
| 100 | 99 |
Compute the Mean Absolute Error (MAE) of the prediction.