Casper Lead, Site Optimization & Analytics interview questions

Contacted by recruiter, who gave me initial screen. Next phone interview with Hiring Manager. Heard within an hour I'd been invited to the final in-person round. Asked a variety of very specific questions about statistics, programming, business and the classic startup question about my vision. It seemed they wanted a candidate that doesn't really exist (strong technical skills, heavy stats background and solid business acumen) and were not willing to compromise on anything.