These are great courses but I think A/B testing and product analysis should also be included as one of the courses enroute Data Science.

Hi Olawuni, thanks for reaching out and for the feedback! We're always looking for ways to improve and expand our data science program and I absolutely agree that AB testing should be a topic. It's in the pipeline of courses we'd like to include and I hope we'll be able to release content on the topic in the near future. Best, 365 Eli

Hi, can you please explain why the final exam (retake) is not available to retake? I have finished the whole course, also did the exam attempts and 30 mins video, but the screen where shows 'retake' is in grey? That meaning that I cannot retake the final exam, and the Course Certification. Thank you,

Hi Mirela, thanks for reaching out! In order to be able to take the career track exam, you need to create a paid subscription to the program. You are offered two exam tries for each career track. If you fail both attempts, you will be given a subsequent attempt after a period of 6 months. Career track exams were opened during the free days, which our platform offered, so if you've taken the first career track exam during that period, this might be why it seems that the retake option is not available. Hope this helps! Best, 365 Eli