Submissions are evaluated on [area under the ROC curve](http://en.wikipedia.org/wiki/Receiver_operating_characteristic) between the predicted probability and the observed target.


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

    EmployeeNumber,Attrition
    1677,0.78
    1678,0.34
    1679,0.55
    etc.