Hello,
this is the link to the powerpoint presentation i made regarding the project in the marketing attribution lesson. Please do let me know if there are any corrections or improvements needed.
Powerpoint: https://1drv.ms/p/s!ArykMkno9EEbjBU8y4fLH84CceZM
code academy project link : https://www.codecademy.com/paths/data-science/tracks/analyze-data-sql-analyze-real-data/modules/analyze-data-sql-marketing-attribution/projects/analyze-data-sql-attribution-queries