## Goal

It is your job to predict the sales price for each house. For each `PID` in the test set, you must predict the value of the `SalePrice` variable. 

## Submission File Format

The file should contain a header and have the following format:

| PID | SalePrice |
| --- | --- |
|907135180  | 169000.1 |
|903206120 | 187724.1233 |

etc.

You can download an example submission file (`sample_submission.csv`) on the Data page.

## Metric

Submissions are evaluated on **Root-Mean-Squared-Error (RMSE)** between the *logarithm* of the predicted value and the *logarithm* of the observed sales price. (Taking logs means that errors in predicting expensive houses and cheap houses will affect the result equally.)

 Note that although this **metric** is calculated on log price, your **submitted predictions** need to be regular prices.