Question	SubQuestion	Total	Achieved	Feedback
1	A	1	1	Correct
	B	1	1	Correct
	C	1	0,6	Correct joins and group by. Error are filtering (consider someone with the email ilovecheckingmail@hotmail.com) and filtering (the exercise requires from you to use as reference date the current date)
2	A	1	1	Multiple metrics that make sense were mentioned.
	B	1,5	1,5	Significance tests were  mentioned and  rollout plan was  elaborated adequately
	C	0,5	0,5	Subset of users per scenario was the expected answer
3	code quality and clarity	1	1	The code was of a standard quality and steps were clarified
	analysis	1	1	Analysis was adequate
	feature engineering	0,5	0,5	Advanced feature engineering was demonstrated
	training/Reasonable split	0,5	0,5	Correct resample and split due to imbalance problem
	evaluation/good model	0,5	0,5	Adequate choice of models and validation
	evaluation/good validation	0,5	0,5	Plethora of evaluation metrics and technics were used
TOTAL		10	9,6