3 ms·
Its designed to quickly weed out people who don't know the underlying math, just as FizzBuzz is designed to quickly weed out people who don't know programming.
by shepardrtc 9y ago
Its designed to quickly weed out people who don't know the underlying math, just as FizzBuzz is designed to quickly weed out people who don't know programming.
- Xcelerate 9y agoI work as a data scientist, and my graduate research involved harmonic analysis over compact groups, optimization over Riemannian manifolds, and loopy belief propagation. You'd reject me in an interview because I couldn't remember the formula for standard deviation off the top of my head?
- shepardrtc 9y agoPersonally, I don't ask weed-out questions. Never have, never will. I'm just saying that's what they're doing.
- red_hare 9y agoIt's not a hard weed-out for us. But, if you talk through variance for 10 minutes, you get pretty close to the formula for standard deviation. Also, for our role, we're specifically hiring someone with extensive stats background since a large part of the role is learning domain-specific statistics of the industry we're targeting and figuring out how we can adopt those models with our data.