The submissions are evaluated using **Root Mean Squared Error (RMSE)**.

Let Tᵢ be the time taken to complete a delivery and T'ᵢ be the predicted time to complete the ith delivery, then:


![](https://www.googleapis.com/download/storage/v1/b/kaggle-user-content/o/inbox%2F7145153%2F0617ed6e962f2d920c948b0d527b05e4%2Fmath-20230326.png?generation=1679826104631282&alt=media)