A Collection of Data Science Take-Home Challenges
We have a table with users, their country and when they created the account. We want to find:
You can download the data set by clicking here.
|user_id||2||this is id of the user|
|created_at||2015-02-28 16:00:40||user 2 created her account on Feb, 2 around 4PM|
|country||China||She is based in China|