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Could you please provide more details of error that you are getting and procedure that you followed to take DC to Edge course. The following is the procedure:
1. Once you have registered for the DC to Edge course, you will recieve a reply mail.
2. In which you will find the option to download the course, a zip file.
3. Unzip the same and In the notebooks folder,
4. In Notebooks, Part3-Model_Analysis .ipynb file there will be an option to take quiz and get the course completion certificate.