Comment by grim_io
6 hours ago
Assuming they check 400 out of 10k, and assuming someone would want to cause any meaningful discrepancies >= 1% of the ballots, meaning 100 problematic ballots per 10k batch.
This system would catch it 98,3% of the time. Pretty good, I'd say.
Ok now what's the potential false positive rate?
1 million ballots at 10,000 per batch means 100 batches. It seems they will use 400 ballots from each batch as a sample, and if anything is wrong for one of those 400 sample ballots, then the entire batch of 10,000 is sent back. Some nefarious actor could find 100 messed up ballots and include one in each sample of 400, and viola! 100 ballots invalidates 1 million votes. That's quite a system they got there.
Maybe I'm stupid, but why would sending back mean invalid?
It gets sent back, it gets investigated and fixed, and back it goes.
Am I missing something?
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