What is the demographics tool used for? Can we use it in conjunction with User Attributes for inf...

What is the demographics tool used for? Can we use it in conjunction with User Attributes for information about our users?
 

Use case: We need to create quarterly reports on students who have passed exams, along with information about what location they are in and which company they work for. Currently this info is uploaded to User Attributes and just sits there. We can't combine it into our reporting.