Hey guys, I've posted here before to show off a collection of 500 SQL and python interview questions (https://platform.stratascratch.com) and got a lot of great feedback from you all. I'm back because I wanted to share 500 more data science interview questions -- this time covering concepts in statistics, modeling, product sense, probability, business cases, and system design. They're all free and were collected from various public sites. But they're free because I'm only 1 person and can't answer them all. I'm hoping the data science community can contribute. These questions all have discussion forums attached to them, sort of like StackOverflow and Reddit style.

I'd love it if you guys could share your thoughts on it! Does this hit the mark as an educational resource to prep for interviews? What can be improved?

And just to be transparent about my end goal here, I'm hoping for this site to be largely free. I just wanted to create a site where people can have technical conversations around data science, and am starting with the niche of interview prep. The coding questions do have an executable IDE with datasets so I do have to charge for most of those questions to pay for my server costs.