3 ms·
Random samples of the _same_ user base. If the user base of "waymo riders" and "everyday drivers" does not match then you're not sampling what you think you ar
by timewizard 1y ago
Random samples of the _same_ user base.
If the user base of "waymo riders" and "everyday drivers" does not match then you're not sampling what you think you are.
- DAGdug 1y agoYeah, that’s fair, but is implicit since I’m arguing against the “sample size is inadequate” POV, not the “there are distributional biases in data” POV. There are a gazillion ways to adjust for these biases (ex. propensity score matching) going beyond just user-base but also including weather type, road type, location, time of day, day of week, traffic density, pedestrian density … that can be done easily with far less than the sample size waymo has. And I bet they do these adjustments.