Too bad I wasn't a data scientist or else I could just get a passing grade by claiming the questions were chosen from a biased data set, or retake the exam until the data set matched the questions I studied for, at which point the data set would no longer be biased, lol.
Funny line of work, this data 'science' where you only use the results that fit the narrative you wanted in the first place.
We're in full doublethink mode, just keep repeating data 'science', 'science', 'science'. :)