# RMSE
The evaluation metric for this competition is **RMSE** (**Root Mean Squared Error**) that is the root of [MSE](https://developers.google.com/machine-learning/crash-course/descending-into-ml/training-and-loss).
$$\textit{RMSE} = \sqrt{\textit{MSE}} = \sqrt{\frac{1}{N}\sum_{(x, y) \in D}(y - f(x))^2}$$

# Submission format
Submission files should contain two columns: `id` and `symboling`.

The file should contain a header and have the following format:
id,symboling
1,0
3,0
4,0
etc.