## Root Mean Squared Error 𝑅𝑀𝑆𝐸
Submissions are scored on the root mean squared error. RMSE ([wikipedia](https://en.wikipedia.org/wiki/Root-mean-square_deviation)):

## Submission File
For each Id in the test set, you must predict a probability for the target variable, Interest. The file should contain a header and have the following format:

The file should contain a header and have the following format:
```
Id,Interest
abcdefghijk,1
```