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 `id` in the test set, you must predict a probability for the `target` variable. The file should contain a header and have the following format:

    id,target
    00054c878,0.5
    0007285a3,0.5
    00076c5a6,0.5
    etc.