3 ms·
Not really... more data can't fix sampling bias.
by umanwizard 7y ago
Not really... more data can't fix sampling bias.
- Retric 7y agoIt’s not a question of ‘more data’ as I could take 50 or 50,000 samples from a single person and I gain nothing about the overall population. Similarly if I sample 50 or 50,000 people from a single city I learn nothing about people outside of that city. But, by sampling N random locations I at worst have N samples to work with. PS: At the extreme, if I sample every single member of a population then ‘more data’ solved any bias problems. Smaller samples are subject to a wider range of biases.